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[routing-wg]The Cidr Report
by cidr-report＠potaroo.net 09 Dec '06

09 Dec '06

This report has been generated at Sat Dec 9 14:46:53 2006 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 02-12-06 202294 130820 03-12-06 202248 130861 04-12-06 202364 130782 05-12-06 202191 130975 06-12-06 202520 131020 07-12-06 202677 131226 08-12-06 202746 131363 09-12-06 202624 131366 AS Summary 23778 Number of ASes in routing system 10043 Number of ASes announcing only one prefix 1520 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 91133440 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 09Dec06 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 202551 131430 71121 35.1% All ASes AS4755 1059 67 992 93.7% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS4134 1209 283 926 76.6% CHINANET-BACKBONE No.31,Jin-rong Street AS18566 981 109 872 88.9% COVAD - Covad Communications Co. AS9498 891 134 757 85.0% BBIL-AP BHARTI BT INTERNET LTD. AS4323 1050 299 751 71.5% TWTC - Time Warner Telecom, Inc. AS22773 709 47 662 93.4% CCINET-2 - Cox Communications Inc. AS19262 737 177 560 76.0% VZGNI-TRANSIT - Verizon Internet Services Inc. AS7018 1520 980 540 35.5% ATT-INTERNET4 - AT&T WorldNet Services AS11492 837 302 535 63.9% CABLEONE - CABLE ONE AS721 813 299 514 63.2% DISA-ASNBLK - DoD Network Information Center AS6197 1020 513 507 49.7% BATI-ATL - BellSouth Network Solutions, Inc AS17488 556 50 506 91.0% HATHWAY-NET-AP Hathway IP Over Cable Internet AS19916 567 70 497 87.7% ASTRUM-0001 - OLM LLC AS18101 490 27 463 94.5% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS855 539 87 452 83.9% CANET-ASN-4 - Bell Aliant AS17676 501 65 436 87.0% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS15270 489 60 429 87.7% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS3602 521 107 414 79.5% AS3602-RTI - Rogers Telecom Inc. AS4766 710 311 399 56.2% KIXS-AS-KR Korea Telecom AS8151 774 396 378 48.8% Uninet S.A. de C.V. AS2386 1109 740 369 33.3% INS-AS - AT&T Data Communications Services AS4812 423 65 358 84.6% CHINANET-SH-AP China Telecom (Group) AS6467 387 52 335 86.6% ESPIRECOMM - Xspedius Communications Co. AS16852 377 60 317 84.1% BROADWING-FOCAL - Broadwing Communications, Inc. AS6198 551 263 288 52.3% BATI-MIA - BellSouth Network Solutions, Inc AS10139 301 13 288 95.7% SMARTBRO-PH-AP Smart Broadband, Inc. AS16814 329 42 287 87.2% NSS S.A. AS33588 410 126 284 69.3% BRESNAN-AS - Bresnan Communications, LLC. AS6517 394 111 283 71.8% YIPESCOM - Yipes Communications, Inc. AS14654 302 31 271 89.7% WAYPORT - Wayport Total 20556 5886 14670 71.4% Top 30 total Possible Bogus Routes 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 61.4.64.0/20 AS9929 CNCNET-CN China Netcom Corp. 64.7.112.0/21 AS13511 ITXC - ITXC 64.7.120.0/21 AS13537 ITXC-2 - ITXC 64.7.240.0/20 AS3602 AS3602-RTI - Rogers Telecom Inc. 64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.46.96.0/20 AS13680 AS13680 Hostway Corporation Tampa, FL 64.46.112.0/20 AS13680 AS13680 Hostway Corporation Tampa, FL 64.66.0.0/19 AS174 COGENT Cogent/PSI 64.79.64.0/19 AS10789 BIGNET-AS - The Bignet 64.79.86.0/24 AS10789 BIGNET-AS - The Bignet 64.79.87.0/24 AS10789 BIGNET-AS - The Bignet 64.79.88.0/24 AS10789 BIGNET-AS - The Bignet 64.79.89.0/24 AS10789 BIGNET-AS - The Bignet 64.79.90.0/24 AS10789 BIGNET-AS - The Bignet 64.79.96.0/20 AS10789 BIGNET-AS - The Bignet 64.89.224.0/20 AS15276 MAX-LV - Intuitive Logic 64.89.224.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.225.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.226.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.232.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.239.0/24 AS15276 MAX-LV - Intuitive Logic 64.185.224.0/20 AS32445 CORPORATESUMMARIES - Coporate Summaries 64.250.128.0/18 AS10789 BIGNET-AS - The Bignet 65.60.45.0/24 AS32311 JKS-ASN - JKS Media, LLC 65.110.0.0/19 AS23260 DATA-FORTRESS-GROUP - Data Fortress Group 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.163.96.0/20 AS25767 WAVEFORM - Waveform Technology, LLC 66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 69.36.128.0/20 AS16527 GVTCINTERNET - Guadalupe Valley Telephone Co-op, Inc. 69.36.192.0/20 AS29804 INTEGRATIX - Integratix Inc. 69.39.193.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.195.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.196.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.55.108.0/24 AS4977 NET1 - Pecos Technologies 72.9.128.0/20 AS27572 THEBOE-27572 - The Boeing Company 72.9.130.0/24 AS29904 THEBOE-29904 - The Boeing Company 72.9.133.0/24 AS30533 THEBOE-30533 - The Boeing Company 78.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 78.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 79.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 79.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 124.40.0.0/16 AS2914 NTT-COMMUNICATIONS-2914 - NTT America, Inc. 125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 131.64.0.0/12 AS721 DISA-ASNBLK - DoD Network Information Center 132.0.0.0/10 AS721 DISA-ASNBLK - DoD Network Information Center 137.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 138.136.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 139.56.0.0/19 AS14956 BROADVISION-ASN - Broadvision Inc. 139.56.72.0/23 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd 158.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 159.3.211.0/24 AS2687 ATT-ASIAPACIFIC AT&T Global Network Services - EMEA 159.220.0.0/22 AS16050 REUTERS-DOCKLANDS-RES-AS Reuters Docklands resiliancy 159.220.4.0/22 AS16050 REUTERS-DOCKLANDS-RES-AS Reuters Docklands resiliancy 159.220.4.0/24 AS16050 REUTERS-DOCKLANDS-RES-AS Reuters Docklands resiliancy 159.220.8.0/22 AS35528 REUTERS-UK2-AS Reuters-UK2 159.220.64.0/23 AS24977 MONEYLINE-UK Moneyline Telerate 162.54.122.0/24 AS5400 BT BT European Backbone 163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC 190.54.0.0/16 AS6429 Core Internet AT&T Chile 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS12582 TSF-DATANET-NGD-AS TSF MPLS VPN Services 192.69.107.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.69.108.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.69.177.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.81.160.0/24 AS719 ELISA-AS Elisa Oyj 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network 192.96.36.0/24 AS5713 SAIX-NET 192.96.37.0/24 AS10474 NETACTIVE 192.96.135.0/24 AS2018 TENET-1 192.96.136.0/23 AS2018 TENET-1 192.96.140.0/24 AS2018 TENET-1 192.96.143.0/24 AS2018 TENET-1 192.96.145.0/24 AS2018 TENET-1 192.96.177.0/24 AS6083 POSIX-AFRICA 192.96.250.0/24 AS2018 TENET-1 192.107.104.0/24 AS7137 TELEMATIX/ ENITEL 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.139.3.0/24 AS23184 PERSONA - PERSONA COMMUNICATIONS INC. 192.153.144.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 192.172.0.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 192.188.208.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 193.43.228.0/22 AS8757 ACCESS11 Access 11 Ltd. (UK) 193.218.132.0/22 AS6714 ATOMNET ATOM SA 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.59.176.0/20 AS1273 CW Cable & Wireless 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 195.35.104.0/24 AS12445 SPIDERNET-AS Selene s.p.a. 196.6.108.0/24 AS5713 SAIX-NET 196.6.175.0/24 AS3741 IS 196.6.176.0/23 AS3741 IS 196.6.183.0/24 AS3741 IS 196.6.196.0/24 AS3741 IS 196.6.199.0/24 AS3741 IS 196.6.208.0/24 AS3741 IS 196.6.211.0/24 AS3741 IS 196.6.212.0/23 AS3741 IS 196.6.212.0/24 AS3741 IS 196.6.222.0/23 AS3741 IS 196.6.237.0/24 AS3741 IS 196.10.119.0/24 AS2018 TENET-1 196.10.122.0/23 AS2018 TENET-1 196.10.136.0/22 AS3741 IS 196.10.140.0/22 AS3741 IS 196.10.231.0/24 AS3741 IS 196.10.251.0/24 AS2018 TENET-1 196.10.252.0/23 AS2018 TENET-1 196.10.254.0/24 AS2018 TENET-1 196.11.0.0/20 AS3741 IS 196.11.40.0/21 AS3741 IS 196.11.135.0/24 AS3741 IS 196.11.188.0/23 AS3741 IS 196.11.190.0/24 AS3741 IS 196.11.251.0/24 AS3741 IS 196.13.101.0/24 AS2018 TENET-1 196.13.102.0/23 AS2018 TENET-1 196.13.104.0/24 AS2018 TENET-1 196.13.108.0/24 AS3741 IS 196.13.116.0/22 AS2018 TENET-1 196.13.121.0/24 AS2018 TENET-1 196.13.125.0/24 AS2018 TENET-1 196.13.126.0/24 AS2018 TENET-1 196.13.128.0/22 AS3741 IS 196.13.144.0/22 AS2905 TICSA-ASN 196.13.152.0/21 AS2905 TICSA-ASN 196.13.160.0/24 AS2905 TICSA-ASN 196.13.169.0/24 AS2018 TENET-1 196.13.174.0/23 AS2018 TENET-1 196.13.176.0/21 AS2018 TENET-1 196.13.188.0/22 AS2018 TENET-1 196.13.192.0/22 AS2018 TENET-1 196.13.196.0/24 AS2018 TENET-1 196.98.17.0/24 AS1257 TELE2 198.7.192.0/19 AS7333 WINNET - WinNET Communications 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET-1 198.54.92.0/24 AS2018 TENET-1 198.54.222.0/24 AS2018 TENET-1 198.54.249.0/24 AS2018 TENET-1 198.54.250.0/24 AS2018 TENET-1 198.54.251.0/24 AS2018 TENET-1 198.97.72.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.80.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.96.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.240.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.101.4.0/22 AS721 DISA-ASNBLK - DoD Network Information Center 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc. 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.179.181.0/24 AS19262 VZGNI-TRANSIT - Verizon Internet Services Inc. 198.235.202.0/24 AS12188 Q9-AS - Q9 Networks Inc. 198.235.203.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.235.204.0/24 AS12188 Q9-AS - Q9 Networks Inc. 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.114.0.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.128.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.130.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.132.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.148.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.150.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.121.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.0.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.16.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.80.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.175.64.0/19 AS6539 GT-BELL - Bell Canada 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 199.246.116.0/24 AS813 UUNET-AS1 - UUNET Technologies, Inc. 202.4.160.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.4.161.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.4.162.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.9.64.0/19 AS9290 TPN-AS-AP Smart Global Network (M) Sdn Bhd 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.58.224.0/19 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.58.224.0/20 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.58.240.0/20 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.58.240.0/24 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.58.244.0/24 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.58.249.0/24 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.58.250.0/24 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.58.253.0/24 AS17925 WAVENET WAVENET PHILIPPINES INC. 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd 202.124.192.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.193.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.194.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.196.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.197.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.198.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.199.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.200.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.201.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.202.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.203.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.204.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.205.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.206.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.207.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.125.96.0/20 AS7693 COMNET-TH KSC Commercial Internet Co. Ltd. 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER 202.164.100.0/24 AS18101 RIL-IDC Reliance Infocom Ltd Internet Data Centre, 203.13.171.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.80.32.0/20 AS4817 DESTRA-AU-AP Destra Corporation 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 203.152.136.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.138.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.142.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.143.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.160.104.0/22 AS23914 OCI-AS-VN One-Connection Internet Company 203.160.110.0/23 AS7643 VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 204.29.196.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 204.29.197.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 204.48.58.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.48.60.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.153.104.0/24 AS10913 INTERNAP-BLK - Internap Network Services 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 205.143.144.0/21 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 207.7.64.0/19 AS14093 ITRIBE - iTRiBE, Inc. 207.191.224.0/23 AS2828 XO-AS15 - XO Communications 207.191.232.0/21 AS2828 XO-AS15 - XO Communications 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 207.246.192.0/20 AS5656 ACCESSUS-DOM - accessU.S./BASENet 209.159.128.0/19 AS209 ASN-QWEST - Qwest 209.177.64.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.65.0/24 AS8088 SRTNET - SRT ENTERPRISES 209.177.66.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.68.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.70.0/24 AS11658 NCITECH - NCI Technologies, Inc. 209.177.89.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.93.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.94.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 209.177.95.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 216.21.1.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.6.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.7.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.15.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.17.0/24 AS11652 DATATONE - Datatone Communications Inc 216.65.160.0/19 AS7770 TRITON - Triton Technologies, Inc. 216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc. 216.126.64.0/19 AS10678 TRENDS-NET - @trends.ca 216.201.72.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.73.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.74.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.75.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.76.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.77.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.78.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.79.0/24 AS14709 Telefonica Moviles Panama S.A. 216.230.224.0/20 AS15270 AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. 216.240.240.0/20 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org ausnog(a)ausnog.net

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[routing-wg]Weekly Routing Table Report
by Routing Analysis Role Account 08 Dec '06

08 Dec '06

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 09 Dec, 2006 Analysis Summary ---------------- BGP routing table entries examined: 205342 Prefixes after maximum aggregation: 111720 Unique aggregates announced to Internet: 100595 Total ASes present in the Internet Routing Table: 23878 Origin-only ASes present in the Internet Routing Table: 20804 Origin ASes announcing only one prefix: 10054 Transit ASes present in the Internet Routing Table: 3074 Transit-only ASes present in the Internet Routing Table: 78 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 29 Max AS path prepend of ASN (36728) 27 Prefixes from unregistered ASNs in the Routing Table: 1 Unregistered ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 9 Number of addresses announced to Internet: 1644568620 Equivalent to 98 /8s, 6 /16s and 32 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 62.9 Percentage of available address space allocated: 70.5 Total number of prefixes smaller than registry allocations: 104160 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 45563 Total APNIC prefixes after maximum aggregation: 18743 Prefixes being announced from the APNIC address blocks: 43141 Unique aggregates announced from the APNIC address blocks: 19599 APNIC Region origin ASes present in the Internet Routing Table: 2793 APNIC Region origin ASes announcing only one prefix: 793 APNIC Region transit ASes present in the Internet Routing Table: 416 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 271634400 Equivalent to 16 /8s, 48 /16s and 207 /24s Percentage of available APNIC address space announced: 84.9 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 101573 Total ARIN prefixes after maximum aggregation: 60333 Prefixes being announced from the ARIN address blocks: 74756 Unique aggregates announced from the ARIN address blocks: 28433 ARIN Region origin ASes present in the Internet Routing Table: 11210 ARIN Region origin ASes announcing only one prefix: 4268 ARIN Region transit ASes present in the Internet Routing Table: 1032 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 29 Number of ARIN addresses announced to Internet: 311174400 Equivalent to 18 /8s, 140 /16s and 37 /24s Percentage of available ARIN address space announced: 68.7 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 42355 Total RIPE prefixes after maximum aggregation: 27711 Prefixes being announced from the RIPE address blocks: 39176 Unique aggregates announced from the RIPE address blocks: 26125 RIPE Region origin ASes present in the Internet Routing Table: 8877 RIPE Region origin ASes announcing only one prefix: 4695 RIPE Region transit ASes present in the Internet Routing Table: 1434 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 22 Number of RIPE addresses announced to Internet: 280016644 Equivalent to 16 /8s, 176 /16s and 183 /24s Percentage of available RIPE address space announced: 75.9 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-43007 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 13354 Total LACNIC prefixes after maximum aggregation: 3985 Prefixes being announced from the LACNIC address blocks: 11406 Unique aggregates announced from the LACNIC address blocks: 6970 LACNIC Region origin ASes present in the Internet Routing Table: 750 LACNIC Region origin ASes announcing only one prefix: 249 LACNIC Region transit ASes present in the Internet Routing Table: 132 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 20 Number of LACNIC addresses announced to Internet: 35325440 Equivalent to 2 /8s, 27 /16s and 6 /24s Percentage of available LACNIC address space announced: 52.6 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 2496 Total AfriNIC prefixes after maximum aggregation: 948 Prefixes being announced from the AfriNIC address blocks: 1738 Unique aggregates announced from the AfriNIC address blocks: 1106 AfriNIC Region origin ASes present in the Internet Routing Table: 170 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 31 Average AfriNIC Region AS path length visible: 3.6 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 4780800 Equivalent to 0 /8s, 72 /16s and 243 /24s Percentage of available AfriNIC address space announced: 14.2 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 1235 8526 249 CHINANET-BACKBONE 4755 1047 384 69 Videsh Sanchar Nigam Ltd. Aut 9583 1001 86 278 Sify Limited 9498 892 212 65 BHARTI BT INTERNET LTD. 23577 775 35 705 KRNIC 4766 745 4945 306 Korea Telecom (KIX) 1221 583 1698 447 Telstra Pty Ltd 17488 556 35 20 Hathway IP Over Cable Interne 7545 551 126 74 TPG Internet Pty Ltd 17676 501 10934 65 Softbank BB Corp. 18101 490 87 23 Reliance Infocom Ltd Internet 9443 442 111 74 Primus Telecommunications 9942 437 81 131 COMindico Australia 4812 430 753 65 China Telecom (Shanghai) 17849 423 36 126 Telecommunications Technology 4802 409 86 149 Wantree Development 17974 369 129 12 PT TELEKOMUNIKASI INDONESIA 17557 366 31 176 Pakistan Telecom 2907 332 1749 309 SINET Japan 4837 327 3844 143 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1553 6186 982 AT&T WorldNet Services 2386 1108 586 738 AT&T Data Communications Serv 4323 1052 803 296 Time Warner Telecom 6197 1020 638 505 BellSouth Network Solutions, 18566 981 272 8 Covad Communications 174 970 6826 883 Cogent Communications 701 951 6707 767 UUNET Technologies, Inc. 11492 825 98 11 Cable One 1239 823 2728 583 Sprint 721 819 21889 296 DLA Systems Automation Center 19262 784 2454 178 Verizon Global Networks 20115 735 633 416 Charter Communications 22773 712 1744 41 Cox Communications, Inc. 209 709 3762 559 Qwest 7011 693 211 430 Citizens Utilities 852 596 1091 389 Telus Advanced Communications 19916 567 48 57 OLM LLC 6198 549 527 256 BellSouth Network Solutions, 5668 545 161 19 CenturyTel Internet Holdings, 855 539 250 73 Canadian Research Network RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 546 1928 425 UUNET - Commercial IP service 3301 309 1199 293 TeliaNet Sweden 3320 297 4992 245 Deutsche Telekom AG 24863 291 44 26 LINKdotNET AS number 8220 273 474 263 COLT Telecommunications 6746 261 92 238 Dynamic Network Technologies, 680 252 2041 248 DFN-IP service G-WiN 3215 230 2104 96 France Telecom Transpac 8708 228 281 215 Romania Data Systems S.A. 1257 219 1073 172 SWIPnet Swedish IP Network 9116 216 134 23 Goldenlines main autonomous s 3269 208 2357 75 TELECOM ITALIA 30890 206 18 86 SC Kappa Invexim SRL 5416 204 13 13 BATELCO-BH 3246 202 353 192 Song Networks 8551 200 198 23 Bezeq International 6830 183 823 39 UPC Distribution Services 3300 177 171 95 AUCS Communications Services 786 172 1795 172 The JANET IP Service 3352 172 1751 30 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 777 1940 208 UniNet S.A. de C.V. 11830 484 299 19 Instituto Costarricense de El 11172 385 104 74 Servicios Alestra S.A de C.V 16814 329 20 8 NSS, S.A. 22047 307 206 11 VTR PUNTO NET S.A. 6471 258 74 31 ENTEL CHILE S.A. 14117 254 16 13 Telefonica del Sur S.A. 7303 227 102 35 Telecom Argentina Stet-France 6503 210 170 94 AVANTEL, S.A. 6147 207 150 20 Telefonica Del Peru 11556 204 101 6 Cable-Wireless Panama 10481 181 72 8 Prima S.A. 21826 153 20 37 INTERCABLE 23216 146 19 43 RAMtelecom Telecomunicaciones 7910 144 10 31 ANDINET ON LINE 19169 139 9 22 Telconet 19429 138 84 34 E.T.B. 14522 129 20 9 SatNet S.A. 18822 129 8 10 TELEFONICA MANQUEHUE 7738 116 442 21 Telecomunicacoes da Bahia S.A AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 290 868 232 The Internet Solution 8452 218 60 7 TEDATA 15475 147 84 4 Nile Online 6713 145 136 12 Itissalat Al-MAGHRIB 2018 133 297 111 Tertiary Education Network 5536 123 8 15 Internet Egypt Network 24835 116 48 6 RAYA Telecom - Egypt 33783 110 6 4 EEPAD TISP TELECOM & INTERNET 2905 84 175 73 The Internetworking Company o 2561 57 6 2 Egyptian Universities Network 15706 55 12 4 Sudatel Internet Exchange Aut 5713 40 294 33 Telkom SA Ltd 12455 39 6 3 Jambonet Autonomous system 33774 38 12 22 AS Number for Telecom Algeria 23889 37 10 15 MAURITIUS TELECOM 16637 33 21 25 Johnnic e-Ventures 8524 30 2 6 AUCEGYPT Autonomous System 15804 27 2 1 AS of The Way Out Internet So 10798 23 1 14 Standard Bank of South Africa 21280 23 4 4 Swift Global Kenya Ltd.Is an Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4134 1235 986 CHINANET-BACKBONE 4755 1047 978 Videsh Sanchar Nigam Ltd. Aut 18566 981 973 Covad Communications 9498 892 827 BHARTI BT INTERNET LTD. 11492 825 814 Cable One 4323 1052 756 Time Warner Telecom 9583 1001 723 Sify Limited 22773 712 671 Cox Communications, Inc. 19262 784 606 Verizon Global Networks 8151 777 569 UniNet S.A. de C.V. 17488 556 536 Hathway IP Over Cable Interne 5668 545 526 CenturyTel Internet Holdings, 721 819 523 DLA Systems Automation Center 6197 1020 515 BellSouth Network Solutions, 19916 567 510 OLM LLC 7545 551 477 TPG Internet Pty Ltd 18101 490 467 Reliance Infocom Ltd Internet 855 539 466 Canadian Research Network 11830 484 465 Instituto Costarricense de El 15270 492 458 PaeTec.net -a division of Pae List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 172.33.1.0/24 7018 AT&T WorldNet Services 192.0.10.0/24 9498 BHARTI BT INTERNET LTD. 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.172.0.0/19 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:10 /10:13 /11:30 /12:112 /13:226 /14:401 /15:797 /16:9099 /17:3643 /18:5850 /19:12704 /20:14320 /21:12781 /22:16225 /23:17799 /24:109640 /25:618 /26:459 /27:360 /28:75 /29:45 /30:91 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 964 981 Covad Communications 9583 835 1001 Sify Limited 7018 831 1553 AT&T WorldNet Services 2386 825 1108 AT&T Data Communications Serv 11492 811 825 Cable One 6197 796 1020 BellSouth Network Solutions, 23577 761 775 KRNIC 7011 598 693 Citizens Utilities 19916 562 567 OLM LLC 4766 556 745 Korea Telecom (KIX) 9498 547 892 BHARTI BT INTERNET LTD. 4755 469 1047 Videsh Sanchar Nigam Ltd. Aut 15270 462 492 PaeTec.net -a division of Pae 855 436 539 Canadian Research Network 18101 422 490 Reliance Infocom Ltd Internet 5668 419 545 CenturyTel Internet Holdings, 17849 409 423 Telecommunications Technology 1239 404 823 Sprint 6198 388 549 BellSouth Network Solutions, 33588 387 410 Bresnan Communications, LLC. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:61 9:1 12:1647 13:1 15:15 16:3 17:3 18:4 20:39 24:831 25:1 32:55 38:267 40:56 41:47 44:2 47:10 52:4 53:1 55:1 56:3 57:24 58:269 59:348 60:221 61:951 62:1058 63:1884 64:3177 65:2287 66:3120 67:680 68:658 69:1708 70:402 71:114 72:1023 74:112 75:42 76:15 77:2 80:818 81:776 82:641 83:387 84:478 85:728 86:419 87:441 88:261 89:651 90:1 91:95 97:1 121:77 122:41 123:3 124:474 125:742 128:309 129:207 130:128 131:319 132:48 133:9 134:177 135:41 136:179 137:114 138:189 139:48 140:522 141:135 142:345 143:215 144:255 145:67 146:323 147:139 148:367 149:172 150:110 151:118 152:82 153:116 154:5 155:262 156:148 157:151 158:167 159:139 160:98 161:80 162:218 163:158 164:237 165:238 166:244 167:278 168:478 169:123 170:382 171:12 172:1 189:27 190:288 192:5745 193:3600 194:2838 195:2169 196:912 198:3791 199:3296 200:4594 201:936 202:7006 203:7225 204:3959 205:2096 206:2420 207:2905 208:2347 209:3564 210:2219 211:855 212:1355 213:1461 214:386 215:39 216:4093 217:1150 218:333 219:259 220:803 221:378 222:248 End of report Report Website: http://thyme.apnic.net

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[routing-wg]BGP Update Report
by cidr-report＠potaroo.net 08 Dec '06

08 Dec '06

BGP Update Report Interval: 24-Nov-06 -to- 07-Dec-06 (14 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS17974 21233 1.7% 67.0 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 2 - AS7018 17136 1.4% 10.9 -- ATT-INTERNET4 - AT&T WorldNet Services 3 - AS28751 16304 1.3% 118.1 -- CAUCASUS-NET-AS Caucasus Network Tbilisi, Georgia 4 - AS855 13259 1.1% 24.5 -- CANET-ASN-4 - Bell Aliant 5 - AS2386 12325 1.0% 11.1 -- INS-AS - AT&T Data Communications Services 6 - AS11492 11336 0.9% 14.9 -- CABLEONE - CABLE ONE 7 - AS23216 8673 0.7% 45.4 -- RAMtelecom Telecomunicaciones S.A 8 - AS4761 8587 0.7% 2.0 -- INDOSAT-INP-AP INDOSAT Internet Network Provider 9 - AS702 8453 0.7% 11.7 -- AS702 MCI EMEA - Commercial IP service provider in Europe 10 - AS15611 7855 0.6% 70.1 -- Iranian Research Organisation 11 - AS4134 7671 0.6% 13.9 -- CHINANET-BACKBONE No.31,Jin-rong Street 12 - AS8151 7128 0.6% 10.4 -- Uninet S.A. de C.V. 13 - AS4775 7014 0.6% 113.1 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 14 - AS18416 6976 0.6% 697.6 -- 15 - AS23918 6566 0.5% 54.7 -- CBB-BGP-IBARAKI Connexion By Boeing Ibaraki AS 16 - AS10292 6491 0.5% 26.4 -- CWJ-1 - Cable & Wireless Jamaica 17 - AS12654 6458 0.5% 293.5 -- RIPE-NCC-RIS-AS RIPE NCC RIS project 18 - AS14699 6276 0.5% 627.6 -- BTCBCI - Bloomingdale Communications Inc 19 - AS15399 6275 0.5% 130.7 -- WANANCHI-KE Wananchi Online Limited 20 - AS5800 6118 0.5% 79.5 -- DDN-ASNBLK - DoD Network Information Center TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS38262 4701 0.4% 4701.0 -- JIVE-247-AS-AP JIVE 247 COMMUNICATION ENTERPRIS 2 - AS3043 3325 0.3% 3325.0 -- AMPHIB-AS - Amphibian Media Corporation 3 - AS31594 2057 0.2% 2057.0 -- FORTESS-AS Fortess LLC Network 4 - AS39250 1553 0.1% 1553.0 -- COLOPROVIDER-AS Colo Provider 5 - AS7781 2415 0.2% 1207.5 -- NETCONNECT - Network Connection 6 - AS4678 1993 0.2% 996.5 -- FINE CANON NETWORK COMMUNICATIONS INC. 7 - AS34378 912 0.1% 912.0 -- RUG-AS Razguliay-UKRROS Group 8 - AS3944 803 0.1% 803.0 -- PARTAN-LAB - Partan & Partan 9 - AS12408 740 0.1% 740.0 -- BIKENT-AS Bikent Ltd. Autonomous system 10 - AS18416 6976 0.6% 697.6 -- 11 - AS14699 6276 0.5% 627.6 -- BTCBCI - Bloomingdale Communications Inc 12 - AS32937 1192 0.1% 596.0 -- CAC-FOR-THE-DEAF-AND-HARD-OF-HEARING - Communication Access Center for the Deaf and Hard of Hearing, Inc. 13 - AS22263 587 0.1% 587.0 -- NAVINVEST-MARINE-SERVICES - Navinvest Marine Services Inc. 14 - AS1206 567 0.1% 567.0 -- PSCNET-HS-AS - Pittsburgh Supercomputing Center 15 - AS33188 1069 0.1% 534.5 -- SCS-NETWORK-1 - Sono Corporate Suites 16 - AS15437 503 0.0% 503.0 -- ASN-KJWS KJWS Autonomous System 17 - AS18173 469 0.0% 469.0 -- AKU-AS-PK Aga Khan University 18 - AS30517 4220 0.3% 468.9 -- GREAT-LAKES-COMNET - Great Lakes Comnet, Inc. 19 - AS12866 460 0.0% 460.0 -- SUN_EU_AS Sun Microsystems European AS 20 - AS41443 457 0.0% 457.0 -- SMART-TELEKOM-AS SMART-TELEKOM-AS TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 203.177.144.0/23 5457 0.4% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 2 - 61.28.170.0/24 4701 0.3% AS38262 -- JIVE-247-AS-AP JIVE 247 COMMUNICATION ENTERPRIS 3 - 209.140.24.0/24 3325 0.2% AS3043 -- AMPHIB-AS - Amphibian Media Corporation 4 - 203.199.128.0/19 3064 0.2% AS4755 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 5 - 216.32.206.0/24 2105 0.1% AS20473 -- AS-CHOOPA - Choopa, LLC 6 - 194.242.124.0/22 2057 0.1% AS31594 -- FORTESS-AS Fortess LLC Network 7 - 61.0.0.0/8 1991 0.1% AS4678 -- FINE CANON NETWORK COMMUNICATIONS INC. 8 - 216.234.49.0/24 1749 0.1% AS7781 -- NETCONNECT - Network Connection 9 - 83.98.220.0/23 1553 0.1% AS39250 -- COLOPROVIDER-AS Colo Provider 10 - 83.210.35.0/24 1409 0.1% AS23918 -- CBB-BGP-IBARAKI Connexion By Boeing Ibaraki AS AS29257 -- CBB-IE-AS Connexion by Boeing Ireland, Ltd. AS30533 -- THEBOE-30533 - The Boeing Company AS31050 -- CBB-RU-ASN Connexion by Boeing Eastern Europe, Ltd. AS33697 -- THEBOE-33697 - The Boeing Company 11 - 204.126.167.0/24 1184 0.1% AS1239 -- SPRINTLINK - Sprint 12 - 206.220.71.0/24 1102 0.1% AS11528 -- PHOTRONICS - Photronics Inc. 13 - 143.81.0.0/21 974 0.1% AS6034 -- DDN-ASNBLK - DoD Network Information Center 14 - 84.205.65.0/24 970 0.1% AS12654 -- RIPE-NCC-RIS-AS RIPE NCC RIS project 15 - 222.127.32.0/19 941 0.1% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 16 - 193.242.123.0/24 912 0.1% AS34378 -- RUG-AS Razguliay-UKRROS Group 17 - 84.205.69.0/24 828 0.1% AS12654 -- RIPE-NCC-RIS-AS RIPE NCC RIS project 18 - 83.210.7.0/24 818 0.1% AS23918 -- CBB-BGP-IBARAKI Connexion By Boeing Ibaraki AS AS29257 -- CBB-IE-AS Connexion by Boeing Ireland, Ltd. AS30533 -- THEBOE-30533 - The Boeing Company AS31050 -- CBB-RU-ASN Connexion by Boeing Eastern Europe, Ltd. AS33697 -- THEBOE-33697 - The Boeing Company 19 - 193.188.136.0/24 812 0.1% AS9051 -- IDM Autonomous System 20 - 198.32.7.0/24 803 0.1% AS3944 -- PARTAN-LAB - Partan & Partan Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org ausnog(a)ausnog.net

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[routing-wg]The Cidr Report
by cidr-report＠potaroo.net 08 Dec '06

08 Dec '06

This report has been generated at Fri Dec 8 21:49:56 2006 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 01-12-06 202144 131097 02-12-06 202294 130820 03-12-06 202248 130861 04-12-06 202364 130782 05-12-06 202191 130975 06-12-06 202520 131020 07-12-06 202677 131226 08-12-06 202746 131340 AS Summary 23796 Number of ASes in routing system 10047 Number of ASes announcing only one prefix 1519 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 91134208 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 08Dec06 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 202557 131324 71233 35.2% All ASes AS4755 1057 67 990 93.7% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS4134 1209 283 926 76.6% CHINANET-BACKBONE No.31,Jin-rong Street AS18566 981 109 872 88.9% COVAD - Covad Communications Co. AS9498 892 134 758 85.0% BBIL-AP BHARTI BT INTERNET LTD. AS4323 1048 299 749 71.5% TWTC - Time Warner Telecom, Inc. AS22773 709 47 662 93.4% CCINET-2 - Cox Communications Inc. AS19262 737 177 560 76.0% VZGNI-TRANSIT - Verizon Internet Services Inc. AS7018 1519 981 538 35.4% ATT-INTERNET4 - AT&T WorldNet Services AS11492 829 309 520 62.7% CABLEONE - CABLE ONE AS721 816 298 518 63.5% DISA-ASNBLK - DoD Network Information Center AS6197 1019 518 501 49.2% BATI-ATL - BellSouth Network Solutions, Inc AS17488 556 57 499 89.7% HATHWAY-NET-AP Hathway IP Over Cable Internet AS19916 567 70 497 87.7% ASTRUM-0001 - OLM LLC AS18101 490 27 463 94.5% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS855 539 87 452 83.9% CANET-ASN-4 - Bell Aliant AS17676 501 65 436 87.0% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS15270 489 60 429 87.7% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS3602 516 106 410 79.5% AS3602-RTI - Rogers Telecom Inc. AS4766 709 311 398 56.1% KIXS-AS-KR Korea Telecom AS8151 777 398 379 48.8% Uninet S.A. de C.V. AS2386 1107 738 369 33.3% INS-AS - AT&T Data Communications Services AS4812 423 65 358 84.6% CHINANET-SH-AP China Telecom (Group) AS6467 387 52 335 86.6% ESPIRECOMM - Xspedius Communications Co. AS16852 380 60 320 84.2% BROADWING-FOCAL - Broadwing Communications, Inc. AS6198 551 263 288 52.3% BATI-MIA - BellSouth Network Solutions, Inc AS16814 329 42 287 87.2% NSS S.A. AS10139 299 13 286 95.7% SMARTBRO-PH-AP Smart Broadband, Inc. AS33588 410 126 284 69.3% BRESNAN-AS - Bresnan Communications, LLC. AS6517 394 111 283 71.8% YIPESCOM - Yipes Communications, Inc. AS14654 302 31 271 89.7% WAYPORT - Wayport Total 20542 5904 14638 71.3% Top 30 total Possible Bogus Routes 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 61.4.64.0/20 AS9929 CNCNET-CN China Netcom Corp. 64.7.112.0/21 AS13511 ITXC - ITXC 64.7.120.0/21 AS13537 ITXC-2 - ITXC 64.7.240.0/20 AS3602 AS3602-RTI - Rogers Telecom Inc. 64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.46.96.0/20 AS13680 AS13680 Hostway Corporation Tampa, FL 64.46.112.0/20 AS13680 AS13680 Hostway Corporation Tampa, FL 64.66.0.0/19 AS174 COGENT Cogent/PSI 64.79.64.0/19 AS10789 BIGNET-AS - The Bignet 64.79.86.0/24 AS10789 BIGNET-AS - The Bignet 64.79.87.0/24 AS10789 BIGNET-AS - The Bignet 64.79.88.0/24 AS10789 BIGNET-AS - The Bignet 64.79.89.0/24 AS10789 BIGNET-AS - The Bignet 64.79.90.0/24 AS10789 BIGNET-AS - The Bignet 64.79.96.0/20 AS10789 BIGNET-AS - The Bignet 64.89.224.0/20 AS15276 MAX-LV - Intuitive Logic 64.89.224.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.225.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.226.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.232.0/24 AS15276 MAX-LV - Intuitive Logic 64.89.239.0/24 AS15276 MAX-LV - Intuitive Logic 64.185.224.0/20 AS32445 CORPORATESUMMARIES - Coporate Summaries 64.250.128.0/18 AS10789 BIGNET-AS - The Bignet 65.60.45.0/24 AS32311 JKS-ASN - JKS Media, LLC 65.110.0.0/19 AS23260 DATA-FORTRESS-GROUP - Data Fortress Group 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.163.96.0/20 AS25767 WAVEFORM - Waveform Technology, LLC 66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 69.36.128.0/20 AS16527 GVTCINTERNET - Guadalupe Valley Telephone Co-op, Inc. 69.36.192.0/20 AS29804 INTEGRATIX - Integratix Inc. 69.39.193.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.195.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.196.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.55.108.0/24 AS4977 NET1 - Pecos Technologies 72.9.128.0/20 AS27572 THEBOE-27572 - The Boeing Company 72.9.130.0/24 AS29904 THEBOE-29904 - The Boeing Company 72.9.133.0/24 AS30533 THEBOE-30533 - The Boeing Company 77.105.192.0/18 AS35706 NAO Net at Once 78.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 78.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 79.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 79.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 124.40.0.0/16 AS2914 NTT-COMMUNICATIONS-2914 - NTT America, Inc. 125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 131.64.0.0/12 AS721 DISA-ASNBLK - DoD Network Information Center 132.0.0.0/10 AS721 DISA-ASNBLK - DoD Network Information Center 137.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 138.136.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 139.56.0.0/19 AS14956 BROADVISION-ASN - Broadvision Inc. 139.56.72.0/23 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd 158.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 159.3.211.0/24 AS2687 ATT-ASIAPACIFIC AT&T Global Network Services - EMEA 159.220.0.0/22 AS16050 REUTERS-DOCKLANDS-RES-AS Reuters Docklands resiliancy 159.220.4.0/22 AS16050 REUTERS-DOCKLANDS-RES-AS Reuters Docklands resiliancy 159.220.4.0/24 AS16050 REUTERS-DOCKLANDS-RES-AS Reuters Docklands resiliancy 159.220.8.0/22 AS35528 REUTERS-UK2-AS Reuters-UK2 159.220.64.0/23 AS24977 MONEYLINE-UK Moneyline Telerate 162.54.122.0/24 AS5400 BT BT European Backbone 163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC 190.54.0.0/16 AS6429 Core Internet AT&T Chile 190.55.64.0/21 AS27747 Telecentro S.A. 190.55.72.0/21 AS27747 Telecentro S.A. 190.55.80.0/21 AS27747 Telecentro S.A. 190.55.88.0/21 AS27747 Telecentro S.A. 190.55.96.0/21 AS27747 Telecentro S.A. 190.55.104.0/21 AS27747 Telecentro S.A. 190.55.112.0/21 AS27747 Telecentro S.A. 190.55.120.0/21 AS27747 Telecentro S.A. 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS12582 TSF-DATANET-NGD-AS TSF MPLS VPN Services 192.69.107.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.69.108.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.69.177.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.81.160.0/24 AS719 ELISA-AS Elisa Oyj 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network 192.96.36.0/24 AS5713 SAIX-NET 192.96.37.0/24 AS10474 NETACTIVE 192.96.135.0/24 AS2018 TENET-1 192.96.136.0/23 AS2018 TENET-1 192.96.140.0/24 AS2018 TENET-1 192.96.143.0/24 AS2018 TENET-1 192.96.145.0/24 AS2018 TENET-1 192.96.177.0/24 AS6083 POSIX-AFRICA 192.96.250.0/24 AS2018 TENET-1 192.107.104.0/24 AS7137 TELEMATIX/ ENITEL 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.139.3.0/24 AS23184 PERSONA - PERSONA COMMUNICATIONS INC. 192.153.144.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 192.172.0.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 192.188.208.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 193.43.228.0/22 AS8757 ACCESS11 Access 11 Ltd. (UK) 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.59.176.0/20 AS1273 CW Cable & Wireless 194.169.211.0/24 AS29686 PROBENETWORKS-AS Probe Networks 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 195.35.104.0/24 AS12445 SPIDERNET-AS Selene s.p.a. 196.6.108.0/24 AS5713 SAIX-NET 196.6.175.0/24 AS3741 IS 196.6.176.0/23 AS3741 IS 196.6.183.0/24 AS3741 IS 196.6.196.0/24 AS3741 IS 196.6.199.0/24 AS3741 IS 196.6.208.0/24 AS3741 IS 196.6.211.0/24 AS3741 IS 196.6.212.0/23 AS3741 IS 196.6.212.0/24 AS3741 IS 196.6.222.0/23 AS3741 IS 196.6.237.0/24 AS3741 IS 196.10.119.0/24 AS2018 TENET-1 196.10.122.0/23 AS2018 TENET-1 196.10.136.0/22 AS3741 IS 196.10.140.0/22 AS3741 IS 196.10.231.0/24 AS3741 IS 196.10.251.0/24 AS2018 TENET-1 196.10.252.0/23 AS2018 TENET-1 196.10.254.0/24 AS2018 TENET-1 196.11.0.0/20 AS3741 IS 196.11.40.0/21 AS3741 IS 196.11.135.0/24 AS3741 IS 196.11.188.0/23 AS3741 IS 196.11.190.0/24 AS3741 IS 196.11.251.0/24 AS3741 IS 196.13.101.0/24 AS2018 TENET-1 196.13.102.0/23 AS2018 TENET-1 196.13.104.0/24 AS2018 TENET-1 196.13.108.0/24 AS3741 IS 196.13.116.0/22 AS2018 TENET-1 196.13.121.0/24 AS2018 TENET-1 196.13.125.0/24 AS2018 TENET-1 196.13.126.0/24 AS2018 TENET-1 196.13.128.0/22 AS3741 IS 196.13.144.0/22 AS2905 TICSA-ASN 196.13.152.0/21 AS2905 TICSA-ASN 196.13.160.0/24 AS2905 TICSA-ASN 196.13.169.0/24 AS2018 TENET-1 196.13.174.0/23 AS2018 TENET-1 196.13.176.0/21 AS2018 TENET-1 196.13.188.0/22 AS2018 TENET-1 196.13.192.0/22 AS2018 TENET-1 196.13.196.0/24 AS2018 TENET-1 196.98.17.0/24 AS1257 TELE2 198.7.192.0/19 AS7333 WINNET - WinNET Communications 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET-1 198.54.92.0/24 AS2018 TENET-1 198.54.222.0/24 AS2018 TENET-1 198.54.249.0/24 AS2018 TENET-1 198.54.250.0/24 AS2018 TENET-1 198.54.251.0/24 AS2018 TENET-1 198.97.72.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.80.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.96.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.240.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.101.4.0/22 AS721 DISA-ASNBLK - DoD Network Information Center 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc. 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.179.181.0/24 AS19262 VZGNI-TRANSIT - Verizon Internet Services Inc. 198.235.202.0/24 AS12188 Q9-AS - Q9 Networks Inc. 198.235.203.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.235.204.0/24 AS12188 Q9-AS - Q9 Networks Inc. 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.114.0.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.128.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.130.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.132.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.148.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.150.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.121.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.0.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.16.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.80.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.175.64.0/19 AS6539 GT-BELL - Bell Canada 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 199.246.116.0/24 AS813 UUNET-AS1 - UUNET Technologies, Inc. 202.4.160.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.4.161.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.4.162.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.9.64.0/19 AS9290 TPN-AS-AP Smart Global Network (M) Sdn Bhd 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd 202.124.192.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.193.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.194.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.196.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.197.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.198.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.199.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.200.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.201.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.202.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.203.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.204.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.205.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.206.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.207.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.125.96.0/20 AS7693 COMNET-TH KSC Commercial Internet Co. Ltd. 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER 202.164.100.0/24 AS18101 RIL-IDC Reliance Infocom Ltd Internet Data Centre, 203.13.171.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 203.152.136.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.138.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.142.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.143.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.160.104.0/22 AS23914 OCI-AS-VN One-Connection Internet Company 203.160.110.0/23 AS7643 VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 204.29.196.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 204.29.197.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 204.48.58.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.48.60.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.153.104.0/24 AS10913 INTERNAP-BLK - Internap Network Services 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 205.143.144.0/21 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.162.224.0/19 AS23464 ILCSNET - Interlink Computer Services 207.7.64.0/19 AS14093 ITRIBE - iTRiBE, Inc. 207.191.224.0/23 AS2828 XO-AS15 - XO Communications 207.191.232.0/21 AS2828 XO-AS15 - XO Communications 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 207.246.192.0/20 AS5656 ACCESSUS-DOM - accessU.S./BASENet 209.159.128.0/19 AS209 ASN-QWEST - Qwest 209.177.64.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.65.0/24 AS8088 SRTNET - SRT ENTERPRISES 209.177.66.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.68.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.70.0/24 AS11658 NCITECH - NCI Technologies, Inc. 209.177.89.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.93.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.177.94.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 209.177.95.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 216.21.1.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.6.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.7.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.15.0/24 AS11652 DATATONE - Datatone Communications Inc 216.21.17.0/24 AS11652 DATATONE - Datatone Communications Inc 216.65.160.0/19 AS7770 TRITON - Triton Technologies, Inc. 216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc. 216.126.64.0/19 AS10678 TRENDS-NET - @trends.ca 216.201.72.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.73.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.74.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.75.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.76.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.77.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.78.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.79.0/24 AS14709 Telefonica Moviles Panama S.A. 216.230.224.0/20 AS15270 AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. 216.240.240.0/20 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org ausnog(a)ausnog.net

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[routing-wg]Assignments of 32 bit AS Numbers
by Henk Uijterwaal 05 Dec '06

05 Dec '06

Dear Colleagues, From 1 January 2007, the RIPE NCC can assign 32-bit Autonomous System Numbers (ASNs). There is more information about this policy in ripe-389: http://www.ripe.net/ripe/docs/ripe-389.html Details of how to request a 32 bit ASN are in ripe-396: http://www.ripe.net/ripe/docs/asnsupport.html ASN32 objects will appear in the RIPE Database from 1 January 2007. Their format is different from the current 16-bit ASNs. The new format is described in these documents: http://www.ietf.org/internet-drafts/draft-michaelson-4byte-as-representatio… http://www.ietf.org/internet-drafts/draft-uijterwaal-rpsl-4byteas-ext-01.txt The introduction of 32-bit ASNs may have an effect on tools that query the RIPE Database or those based on RPSL. A test server is available. There is more information at: http://www.ripe.net/news/asn-test-server.html Sites using the RIPE Database software will probably have to upgrade their systems, see: http://www.ripe.net/news/asn-db-update.html For more information, please contact us at <asn32(a)ripe.net>. Answers to frequently asked questions will appear in the RIPE NCC FAQ at: http://www.ripe.net/info/faq/ Kind Regards, The RIPE NCC -- ------------------------------------------------------------------------------ Henk Uijterwaal Email: henk.uijterwaal(at)ripe.net RIPE Network Coordination Centre http://www.amsterdamned.org/~henk P.O.Box 10096 Singel 258 Phone: +31.20.5354414 1001 EB Amsterdam 1016 AB Amsterdam Fax: +31.20.5354445 The Netherlands The Netherlands Mobile: +31.6.55861746 ------------------------------------------------------------------------------

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[routing-wg]Weekly Routing Table Report
by Routing Analysis Role Account 01 Dec '06

01 Dec '06

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 02 Dec, 2006 Analysis Summary ---------------- BGP routing table entries examined: 205332 Prefixes after maximum aggregation: 111319 Unique aggregates announced to Internet: 100277 Total ASes present in the Internet Routing Table: 23820 Origin-only ASes present in the Internet Routing Table: 20760 Origin ASes announcing only one prefix: 10013 Transit ASes present in the Internet Routing Table: 3060 Transit-only ASes present in the Internet Routing Table: 77 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 29 Max AS path prepend of ASN (36728) 27 Prefixes from unregistered ASNs in the Routing Table: 1 Unregistered ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 9 Number of addresses announced to Internet: 1642195372 Equivalent to 97 /8s, 225 /16s and 233 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 62.9 Percentage of available address space allocated: 70.5 Total number of prefixes smaller than registry allocations: 104338 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 45512 Total APNIC prefixes after maximum aggregation: 18619 Prefixes being announced from the APNIC address blocks: 43077 Unique aggregates announced from the APNIC address blocks: 19414 APNIC Region origin ASes present in the Internet Routing Table: 2778 APNIC Region origin ASes announcing only one prefix: 782 APNIC Region transit ASes present in the Internet Routing Table: 411 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 270775520 Equivalent to 16 /8s, 35 /16s and 180 /24s Percentage of available APNIC address space announced: 84.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 101808 Total ARIN prefixes after maximum aggregation: 60182 Prefixes being announced from the ARIN address blocks: 74992 Unique aggregates announced from the ARIN address blocks: 28501 ARIN Region origin ASes present in the Internet Routing Table: 11192 ARIN Region origin ASes announcing only one prefix: 4257 ARIN Region transit ASes present in the Internet Routing Table: 1029 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 29 Number of ARIN addresses announced to Internet: 311376640 Equivalent to 18 /8s, 143 /16s and 59 /24s Percentage of available ARIN address space announced: 68.7 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 42128 Total RIPE prefixes after maximum aggregation: 27602 Prefixes being announced from the RIPE address blocks: 38996 Unique aggregates announced from the RIPE address blocks: 26031 RIPE Region origin ASes present in the Internet Routing Table: 8851 RIPE Region origin ASes announcing only one prefix: 4682 RIPE Region transit ASes present in the Internet Routing Table: 1427 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 278929796 Equivalent to 16 /8s, 160 /16s and 33 /24s Percentage of available RIPE address space announced: 75.6 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-43007 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 13409 Total LACNIC prefixes after maximum aggregation: 3975 Prefixes being announced from the LACNIC address blocks: 11385 Unique aggregates announced from the LACNIC address blocks: 6917 LACNIC Region origin ASes present in the Internet Routing Table: 751 LACNIC Region origin ASes announcing only one prefix: 243 LACNIC Region transit ASes present in the Internet Routing Table: 134 Average LACNIC Region AS path length visible: 4.2 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 35219200 Equivalent to 2 /8s, 25 /16s and 103 /24s Percentage of available LACNIC address space announced: 52.5 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 2473 Total AfriNIC prefixes after maximum aggregation: 941 Prefixes being announced from the AfriNIC address blocks: 1707 Unique aggregates announced from the AfriNIC address blocks: 1078 AfriNIC Region origin ASes present in the Internet Routing Table: 171 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 27 Average AfriNIC Region AS path length visible: 3.5 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 4480768 Equivalent to 0 /8s, 68 /16s and 95 /24s Percentage of available AfriNIC address space announced: 13.4 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 1231 8525 248 CHINANET-BACKBONE 4755 1045 384 69 Videsh Sanchar Nigam Ltd. Aut 9583 985 95 175 Sify Limited 9498 893 212 62 BHARTI BT INTERNET LTD. 23577 777 35 707 KRNIC 4766 744 4945 306 Korea Telecom (KIX) 1221 581 1698 446 Telstra Pty Ltd 17488 556 35 20 Hathway IP Over Cable Interne 7545 549 126 74 TPG Internet Pty Ltd 17676 501 10934 65 Softbank BB Corp. 18101 489 87 23 Reliance Infocom Ltd Internet 9443 442 111 74 Primus Telecommunications 9942 437 81 131 COMindico Australia 4812 427 749 67 China Telecom (Shanghai) 17849 423 36 126 Telecommunications Technology 4802 410 86 150 Wantree Development 17974 369 129 12 PT TELEKOMUNIKASI INDONESIA 17557 366 31 176 Pakistan Telecom 2907 332 1749 309 SINET Japan 4837 325 3652 141 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1551 6210 982 AT&T WorldNet Services 2386 1108 570 736 AT&T Data Communications Serv 4323 1046 805 297 Time Warner Telecom 6197 1021 629 497 BellSouth Network Solutions, 18566 979 272 8 Covad Communications 701 953 6707 774 UUNET Technologies, Inc. 174 945 6821 867 Cogent Communications 11492 839 98 14 Cable One 721 826 21905 298 DLA Systems Automation Center 1239 822 2730 575 Sprint 19262 786 2452 177 Verizon Global Networks 20115 770 688 412 Charter Communications 209 712 3765 558 Qwest 22773 710 1744 41 Cox Communications, Inc. 7011 692 213 431 Citizens Utilities 852 596 1091 389 Telus Advanced Communications 19916 567 48 57 OLM LLC 6198 549 527 256 BellSouth Network Solutions, 5668 548 161 19 CenturyTel Internet Holdings, 855 539 250 73 Canadian Research Network RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 547 1928 426 UUNET - Commercial IP service 3301 308 1215 292 TeliaNet Sweden 3320 298 4992 246 Deutsche Telekom AG 24863 287 44 27 LINKdotNET AS number 8220 272 472 262 COLT Telecommunications 6746 260 92 237 Dynamic Network Technologies, 680 250 2041 246 DFN-IP service G-WiN 9116 231 134 23 Goldenlines main autonomous s 8708 228 282 214 Romania Data Systems S.A. 3215 223 2020 96 France Telecom Transpac 1257 218 1073 172 SWIPnet Swedish IP Network 3246 209 370 199 Song Networks 3269 208 2357 75 TELECOM ITALIA 5416 204 13 13 BATELCO-BH 30890 202 18 82 SC Kappa Invexim SRL 8551 199 197 24 Bezeq International 6830 184 823 39 UPC Distribution Services 3300 177 171 95 AUCS Communications Services 3352 172 1751 30 Ibernet, Internet Access Netw 786 171 1779 171 The JANET IP Service LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 759 1922 208 UniNet S.A. de C.V. 11830 484 299 19 Instituto Costarricense de El 11172 384 104 78 Servicios Alestra S.A de C.V 16814 329 20 8 NSS, S.A. 22047 307 206 11 VTR PUNTO NET S.A. 6471 258 74 31 ENTEL CHILE S.A. 14117 254 16 13 Telefonica del Sur S.A. 7303 225 101 37 Telecom Argentina Stet-France 6147 209 148 23 Telefonica Del Peru 11556 204 101 6 Cable-Wireless Panama 6503 202 170 93 AVANTEL, S.A. 10481 181 72 8 Prima S.A. 21826 150 20 39 INTERCABLE 7910 143 10 31 ANDINET ON LINE 23216 143 19 43 RAMtelecom Telecomunicaciones 19169 139 9 22 Telconet 19429 135 84 34 E.T.B. 14522 131 20 9 SatNet S.A. 18822 129 8 10 TELEFONICA MANQUEHUE 7738 116 442 21 Telecomunicacoes da Bahia S.A AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 292 804 232 The Internet Solution 8452 221 60 7 TEDATA 15475 147 84 4 Nile Online 6713 145 136 12 Itissalat Al-MAGHRIB 2018 133 297 111 Tertiary Education Network 5536 123 8 15 Internet Egypt Network 24835 116 48 6 RAYA Telecom - Egypt 33783 110 6 4 EEPAD TISP TELECOM & INTERNET 2905 83 173 71 The Internetworking Company o 2561 57 6 2 Egyptian Universities Network 15706 55 12 4 Sudatel Internet Exchange Aut 5713 40 294 33 Telkom SA Ltd 12455 40 6 3 Jambonet Autonomous system 23889 35 10 14 MAURITIUS TELECOM 33774 34 8 21 AS Number for Telecom Algeria 16637 33 21 25 Johnnic e-Ventures 8524 31 2 5 AUCEGYPT Autonomous System 15804 27 2 1 AS of The Way Out Internet So 10798 23 1 14 Standard Bank of South Africa 21280 23 4 4 Swift Global Kenya Ltd.Is an Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4134 1231 983 CHINANET-BACKBONE 4755 1045 976 Videsh Sanchar Nigam Ltd. Aut 18566 979 971 Covad Communications 9498 893 831 BHARTI BT INTERNET LTD. 11492 839 825 Cable One 9583 985 810 Sify Limited 4323 1046 749 Time Warner Telecom 22773 710 669 Cox Communications, Inc. 19262 786 609 Verizon Global Networks 8151 759 551 UniNet S.A. de C.V. 17488 556 536 Hathway IP Over Cable Interne 5668 548 529 CenturyTel Internet Holdings, 721 826 528 DLA Systems Automation Center 6197 1021 524 BellSouth Network Solutions, 19916 567 510 OLM LLC 7545 549 475 TPG Internet Pty Ltd 855 539 466 Canadian Research Network 18101 489 466 Reliance Infocom Ltd Internet 11830 484 465 Instituto Costarricense de El 15270 489 455 PaeTec.net -a division of Pae List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 64599 PRIVATE 64.200.115.0/24 32083 Omnispring Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 172.33.1.0/24 7018 AT&T WorldNet Services 176.16.0.0/16 7908 Comsat Argentina S.A. 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.172.0.0/19 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:10 /10:13 /11:30 /12:111 /13:223 /14:398 /15:794 /16:9109 /17:3622 /18:5839 /19:12681 /20:14292 /21:12900 /22:16291 /23:17718 /24:109543 /25:654 /26:475 /27:370 /28:75 /29:44 /30:88 /31:0 /32:33 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 962 979 Covad Communications 2386 826 1108 AT&T Data Communications Serv 7018 826 1551 AT&T WorldNet Services 11492 825 839 Cable One 9583 819 985 Sify Limited 6197 799 1021 BellSouth Network Solutions, 23577 763 777 KRNIC 7011 597 692 Citizens Utilities 19916 562 567 OLM LLC 4766 555 744 Korea Telecom (KIX) 9498 546 893 BHARTI BT INTERNET LTD. 4755 468 1045 Videsh Sanchar Nigam Ltd. Aut 15270 459 489 PaeTec.net -a division of Pae 855 436 539 Canadian Research Network 5668 423 548 CenturyTel Internet Holdings, 18101 421 489 Reliance Infocom Ltd Internet 17849 409 423 Telecommunications Technology 1239 406 822 Sprint 6198 388 549 BellSouth Network Solutions, 33588 388 411 Bresnan Communications, LLC. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:67 9:1 12:1649 13:1 15:15 16:3 17:3 18:4 20:39 24:840 25:1 32:56 38:269 40:57 41:33 44:2 47:8 52:4 53:1 55:1 56:3 57:24 58:269 59:343 60:217 61:949 62:1059 63:1884 64:3173 65:2291 66:3119 67:674 68:658 69:1714 70:395 71:113 72:1023 74:112 75:34 76:14 80:817 81:759 82:641 83:381 84:484 85:755 86:420 87:434 88:277 89:635 90:1 91:100 97:1 121:77 122:32 123:3 124:470 125:736 128:309 129:206 130:126 131:322 132:48 133:9 134:178 135:42 136:179 137:115 138:187 139:48 140:523 141:135 142:346 143:213 144:253 145:67 146:329 147:139 148:360 149:172 150:109 151:118 152:82 153:110 154:5 155:262 156:148 157:163 158:166 159:139 160:98 161:86 162:217 163:162 164:237 165:236 166:244 167:274 168:487 169:123 170:394 171:12 172:1 189:12 190:312 192:5732 193:3583 194:2835 195:2147 196:909 198:3785 199:3286 200:4585 201:928 202:7006 203:7221 204:3946 205:2096 206:2415 207:2910 208:2333 209:3553 210:2230 211:861 212:1367 213:1463 214:382 215:39 216:4109 217:1148 218:335 219:250 220:815 221:367 222:250 End of report Report Website: http://thyme.apnic.net

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[routing-wg]aggregation recommendations document
by Philip Smith 30 Nov '06

30 Nov '06

Hi everyone, Rob Evans, Mike Hughes and I have been working since the last RIPE meeting on putting together a route aggregation document. Our desire would be that this document becomes a Routing Working Group recommendation for the general Internet industry. We have 10 minutes in the WG agenda week after next to discuss it. But to start discussion, I've attached the current draft. Comments, additions, feedback, etc, are most welcome. Thanks, philip -- RIPE Routing-WG Recommendations on Route Aggregation Philip Smith Rob Evans Mike Hughes Document ID: TBA Date Published: TBA Abstract This document discusses the need for aggregation of prefixes on the Internet today, and recommends good working practices for Internet Service Providers and other Autonomous Networks connected to the Internet. Table of Contents 1. Introduction 2. Background 2.1 The Early Internet 2.2 Today's Internet 3. What is Aggregation 4. The Internet Routing Table 4.1 Deaggregation 4.2 General Deaggregation 4.3 iBGP and eBGP 4.4 Deaggregation to aid Multi-homing 4.5 Legacy Assignments 5. Impacts of the Routing Table size 5.1 Router Memory 5.2 Router Processing Power 5.3 Routing Convergence 5.4 Network Performance 6. Solutions 6.1 The CIDR Report 6.2 Filtering 6.3 The "CIDR Police" 6.4 BGP Features 6.4.1 The NO_EXPORT BGP Community 6.4.2 The NOPEER BGP Community 6.4.3 The AS_PATHLIMIT attribute 7. Recommendations 7.1 Initial Allocations 7.2 Subsequent Allocations 7.3 Multi-homing 7.4 BGP Enhancements 7.5 IP Version 6 8. Conclusion 9. Acknowledgments Y. References Z. Authors 1. Introduction The Internet is made up of autonomous networks (usually called Autonomous Systems or AS) interconnected with each other. These autonomous networks will have over time been assigned or allocated address space for use within their own networks, or networks of their customers. This address space is announced to neighbouring autonomous networks. Depending on the business or contractual arrangements between these neighbouring autonomous networks, this address space may or may not announced to neighbouring autonomous networks. And so on, across the entire Internet. The collection of this address space as announced by the organisational entities making up the Internet is known as the Internet Routing Table. With each AS announcing their address space, and each AS hearing this announcement either directly or indirectly, each end system in the Internet is able to communicate with other end systems, thereby giving the global communications system known as the Internet. 2. Background As documented in the CIDR Report [1] and other similar activities, the size of the Internet Routing Table has been of considerable interest to Internet Service Providers and the vendors of Internet routing equipment since the rapid adoption of the Internet as a communications medium in the early 90s. 2.1 The Early Internet In the early Internet, address space assigned to Autonomous Systems and end-sites fitted into three categories: class A, class B, and class C. The Internet Routing Table contained only these three types of addressing, small organisations receiving a class C, medium sized organisations receiving a class B, and large organisations receiving a class A. This was known as classful address assignment, and the routing system associated with it understood the different classes. A major effort in 1994 saw the Internet start the conversion from using this classful prefix system to using a classless system ([2] and [3]). The motivation for this was the rapid depletion of the classful address space, with biggest pressure being on the address space range being used for class B networks (128.0.0.0 to 191.255.0.0). With the commercialisation of the Internet and prior to the migration to the classless addressing system, organisations which had grown out of their requirements for a single class C network would receive further class C networks, rather than being "upgraded" to a class B network. This was designed to reduce the pressure on the class B address block. The result of this was that many organisations had a large amount of class C address blocks for their use - or a large number of /24 prefixes, using today's terminology. As part of the migration to the classless routing system, the CIDR Report's original motivation was to encourage network operators to merge their contiguous /24 prefixes into a single larger announcement. This activity is called aggregation and will be explained in detail in subsequent sections. The CIDR Report was quite successful in encouraging aggregation. The weekly public e-mail to Operations mailing lists helped point out those ISPs who were making efforts at aggregating their announcements to the Internet. The results of this peer pressure are visible in the early stages of the graphs available on the CIDR Report web-site ([1] and [4]). 2.2 Today's Internet In the classless Internet today, network operators who participate in the Regional Internet Registry (RIR) system will receive allocations from the RIRs (AfriNIC, APNIC, ARIN, LACNIC & RIPE NCC). These allocations will be of the size requested from the RIRs according to the network operators' requirements, and generally will be of a minimum size, for example a /21. Following the introduction of the classless allocation system and classless routing in 1994, network operators would receive an address block from their RIR, and would generally announce this address block to the Internet. This happens in the same way that operators in the early Internet would announce only the class A, class B, or class C they had been assigned. While there is a widely known and unwritten expectation that the address block allocated by the RIR is what would be announced by the network operator to the Internet, the more common practice today seems to be to still announce /24s (the equivalent of the legacy class Cs). The result is that around 60% of the Internet Routing Table consists of /24 prefixes. While some of these are undoubtedly caused by traffic engineering efforts for multi-homing (an activity recognised as a requirement in the industry by the authors of RFC1519 - [3]), the majority can be attributed to ISPs "receiving 32 Class Cs from the RIR" and announcing them as such. (Expected behaviour would be to combine these into a single announcement with a /19 network mask.) 3. What is Aggregation? Aggregation is the activity of introducing several contiguous IP addresses as a single address block into the IP routing system. For example, if an enterprise has received 32 IP addresses from their ISP for numbering the systems on their internal LAN, they would announce these 32 IP addresses to their ISP as a single entity. Each device on the LAN can be represented by the address block, rather than their presence having to be uniquely indicated to the rest of the world. For example, if the enterprise receives contiguous addresses from 192.0.2.0 to 192.0.2.31, they would announce this to their ISP as 192.0.2.0/27. This format says that the first 27 bits of the IP address is the network portion, with the final 5 bits being the host portion. Likewise, on a larger scale, if an ISP has received 4096 IP addresses from the RIR, for example 10.201.48.0 to 10.201.63.255, they would announce these IP addresses as a single address block to their neighbouring networks, so as 10.201.48.0/20. Both these examples describe what is known as aggregation. The end network has combined contiguous addresses into a single entity, and this single entity is announced to neighbouring Autonomous Systems. While these two examples are relatively small scale examples, they indicate the activities of ISPs who participate in the Internet - individual IP addresses are combined into the largest feasible chunk before they are announced to the Internet. 4. The Internet Routing Table There are but a few contributory factors to the size of the Internet Routing Table. These are analysed in turn. 4.1 What is Deaggregation? The RIRs allocate address space to ISPs in blocks, with the expectation that these blocks are announced to the Internet unaltered. It should be noted that the RIRs have no rules about how this address space should be announced to the Internet. The industry considers it improper for the RIRs to tell ISPs how to announce address space; in the same way that libraries won't tell their readers how to read the books it lends. However, many ISPs don't announce their allocations as single blocks as they are expected to, preferring to announce their address space in smaller pieces, even as small as /24s. This activity is known as deaggregation. 4.2 General Deaggregation There seem to be several reasons for this deaggregation. Some providers claim that they have commercial reasons for doing so; some cite routing system security concerns; others claim it reduces bandwidth wasting virus and miscreant activities against their networks. Routing system security is a general concern for many providers around the Internet. There is no universally accepted or used system for ensuring that a provider is entitled to originate any address block. (While the Internet Routing Registry was designed to assist with this, its use has never been made mandatory, and the routing system still works well without it.) The result is that some providers work around their concerns about the relative lack of routing system security by simply announcing the smallest acceptable prefix. This means that no other autonomous system can announce more specific versions of the same prefixes thereby causing a denial of service on the legitimate user of the address space. However, the authors are aware of very few such incidents being recorded, so deaggregation for security reasons seems a somewhat overly unfriendly activity compared with the potential risk. Another claimed reason for deaggregation is the claim that it reduces denial of service attacks and miscreant activities aimed at a service provider network. It is well known that there are many virus and worm ridden systems around the Internet that simply carry out scans of contiguous address blocks (whether routed or not) looking for other systems to infect. This creates a "background noise" of traffic aimed at an address block. In the authors' experience, the announcement of a /16 address block can attract up to 2Mbps of this noise - in developing parts of the Internet, such bandwidth is an expensive proposition for ISPs, so they only announce what they are actually using. As each /24 is consumed by their infrastructure and their customers, they'd announce the /24 to the Internet (and quite often this /24 is not sequential to any previous internal assignments). Even when the original /19 allocation was entirely used, the ISP makes no effort to aggregate it (in their eyes nothing is broken, so doesn't require fixing), with the resulting impact on the size of the global Routing Table. It is likely that the blanket "we have commercial reasons for deaggregation" claimed by some providers includes concerns about both of the previous scenarios. It is also quite likely that there are other commercial reasons; one example heard in previous years was that appearing in the top 10 of the CIDR Report was considered a positive reflection on the size and quality of the ISP's business. 4.3 iBGP and eBGP A further reason for deaggregation seems to be a failure to appreciate the difference between BGP as used inside the SP network (iBGP), and BGP as used for inter-domain routing (eBGP). iBGP is intended to carry all the ISP's customer prefixes and local infrastructure prefixes (hosting LANs, etc), as well as prefixes learned from other SP networks. eBGP is intended to announce reachability between domains, and this can simply be achieved by each ISP announcing the address blocks they have been allocated by the RIRs. Quite often ISPs happily leak their iBGP routing information into eBGP, with the resulting impact on the size of the Internet Routing Table. Perhaps the most interesting location where the differences between an ISP's iBGP and eBGP can be examined would be at the University of Oregon Route Views project [5]. This project has views of the Internet Routing Table as seen by many different ISPs around the world. Some ISPs choose to send their eBGP view, others choose to send their iBGP view. The Route Biews project makes no demands on what should or should not be sent. This then provides an interesting insight into aggregation efforts made by ISPs, the extent of iBGP for some of the larger ISPs, and the filtering efforts made by other ISPs to remove iBGP views received from their peers across the Internet routing infrastructure. 4.4 Deaggregation to aid Multi-homing The need to deaggregate as part of traffic engineering activities for networks who multi-home is an oft quoted reason or absolute justification for the size of the Internet Routing Table. It seems that standard multi-homing practice these days is to take any address allocation or assignment, chop it into individual /24s, and announce these /24s out of all external network links. A /24 is chosen for this activity as there is a belief that most ISPs will filter IP prefixes on a /24 boundary (being the size of the legacy class C address), even though there is little evidence to back this belief up, as a cursory glance at the CIDR Report [1] will show. Furthermore, the theory behind announcing an address block only as /24s is that this will somehow make multi-homing work. In the authors' experience this is not the case, as successful traffic engineering and load balancing is only achieved by announcing appropriate sub-prefixes of an allocated address block depending on traffic levels generated by devices occupying these sub-prefixes. The result of this scatter gun approach is a further contribution to the increase in the size of the Internet Routing Table. 4.5 Legacy Assignments Often blamed for the Internet Routing Table size are legacy assignments. These are assignments made by the IANA prior to the establishment of the RIR system. However, the main contributor to the Internet Routing Table from legacy assignments was from the 192/8 block, the first /8 block in the former class C space. After the clean up post-migration to classless routing, the 192/8 address block has remained at contributing around 5500 prefixes to the Internet Routing Table. This compares more than favourably with other /8 blocks which the RIRs use for allocations to ISPs, where completed blocks often contribute 8000 or 9000 prefixes each. Looking into the former class B space (128/8 up to 191/8), there is significant deaggregation in the legacy class B assignments, but more than likely caused by issues discussed in the previous two sections. The same is true for legacy assignments in the former class A space. 5. Impacts of the Routing Table size Why should the size of the Internet Routing Table matter? In the discussion so far, little more than prudence has been mentioned in what should be announced to the Internet. But there are many issues facing Autonomous Systems participating in the Internet today. 5.1 Router Memory Throughout the history of the Internet, routing equipment vendors have specified routing equipment to be sufficient for the networks of the day. In the rapidly growing Internet, this has caused anguish for operators at various stages. A rapidly growing Internet has seen routers with sufficient memory to carry the Full Table one year become obsolete the following year; even with the router being upgraded to maximum memory it still has not sufficient capacity to store the table as it stands. Newer model routers with larger memory are the natural replacements, meaning a very short shelf life of a router compared with other components in the Internet. With the associated upheaval in the service provider networks caused by equipment upgrades. 5.2 Router Processing Power Another resource under pressure is that of the router CPU (control plane). The larger the Internet Routing Table is, the longer it takes the router CPU to process on initial establishment of the BGP session with neighbouring Autonomous Systems, and the more time the router CPU requires to process changes in this Routing Table due to topology changes. Faster CPUs reduce this time, so the network operator is faced with having to upgrade router CPUs, often by fork-lift upgrades (swapping entire chassis), just to keep the same routing performance within their network. A typical scenario was presented in [6] following a request to provide a prediction on the size of routers needed in 5 years time - the shelf life of existing router hardware is reducing with the increasing size of the table and the increasing number of routing information updates being seen on the Internet. 5.3 Routing Convergence Closely related to Router Processing Power is that of Routing Convergence - or when the network has finally figured out the best path to a particular destination. The slower the router CPU, the longer it will take for the network to converge. The larger the Internet Routing Table, the more prefixes and paths the router will have to process, and the longer the network will take to converge. Slow convergence means slow recovery in the event of network failure, and result in a much more customer visible network issue. To speed routing convergence, the size of router CPUs can be increased, again with control plane upgrades, or even entire chassis upgrades. Alternatively, the size of the Internet Routing Table can be better controlled; slower growth delays the requirement to upgrade router CPUs. 5.4 Network Performance The performance of the network is something that network operators don't consider has anything to do with prefix announcements to the Internet. However, it is relatively easy to demonstrate that failure to announce the aggregate makes the overall Internet experience of the end users of the local network somewhat poorer than if the aggregate was announced. A typical and common situation that the authors have encountered is where a network operator announces prefixes in their internal BGP out to the Internet (by external BGP). Customer prefixes are injected into the internal BGP when the link to the customer is active, and then withdrawn when the link to the customer is inactive. The problem with leaking the internal BGP out to the Internet is that these customer prefixes have to be withdrawn from all the routers which carry the full Internet Routing Table across the entire Internet. And this withdrawal does not happen instantly [7] or uniformly, with the attendant problems this causes. When the customer link returns, their prefix is re-injected into their provider's internal BGP, and then further announced out to the Internet. This out-bound announcement again doesn't happen instantly. The result of all this is that the end user sees the Internet as being not immediately available once their link returns. Support calls to their service provider are handled negatively because as far as the service provider is concerned there is nothing wrong. If the service provider had not leaked their internal BGP to the Internet, but instead announced their aggregate and any necessary traffic engineering sub-prefixes, their customer would not have seen the delays in the restoration of usability of their Internet connection. 6. Solutions Various solutions to the problem of the growth of the Internet routing table have been proposed and attempted over recent years. 6.1 The CIDR Report The CIDR Report originally was one technique employed to hold the Internet Routing Growth in check. The idea behind the CIDR Report was to encourage ISPs to aggregate. Its effectiveness was primarily through peer pressure, naming and shaming. It was effective in the early years of the migration from classful to classless Internet, but in recent years, there is some evidence of ISPs using their prominent position in the CIDR Report as positive marketing regarding their status and influence in the Internet! In recent years the CIDR Report has been greatly enhanced over the early reporting tool, with the associated web-site [1] having a user interface to allow network operators to check their aggregation efforts. In a sense, there is little reason for any network operator to be unaware of the cause of their announcements to the Internet Routing Table. 6.2 Filtering Another technique employed is the filtering on the RIR minimum allocation sizes per address block allocated by the IANA to the RIRs. For example, if an RIR's smallest allocation from a particular /8 block was a /21, the network operators would filter routing announcements received from external networks such that prefixes smaller than the /21 would be rejected. Effects of general prefix filtering can be seen on the CIDR Report web-site [4], which has views of the full Internet Routing Table as seen from many different Autonomous Systems. It's not clear how many network operators employ filtering based on RIR minimum allocation sizes, nor is it clear if such filtering is completely useful in achieving its intention of limiting routing table size. Very clearly, if a network operator has received the minimum allocation from their RIR, their ability to traffic engineer for multi-homing is somewhat restricted - they cannot subdivide their address block for traffic engineering purposes if their upstream provider filters on the RIR minimum allocation boundaries. 6.3 The "CIDR Police" In the late 90s and early 00s, a small group of volunteers analysed the various routing table announcement reports, and gave their time freely to work with ISPs who were announcing more prefixes than they apparently needed to. They would look for ISPs announcing contiguous /24 prefixes, and suggest that merging these into a single larger announcement would be beneficial to the Internet Routing Table. This met with varying levels of success, ranging from cooperation and appreciation to hostility and even abuse from the network operators concerned. With the Internet "bust" in 2001, this activity was deprioritised as the organisations who employed these volunteers had less time and patience for them to carry out their community work. While recent years have seen some discussion about restarting the "CIDR Police" effort, nothing has yet materialised at the time of writing. 6.4 BGP Features The Internet community (mainly the ISPs and the equipment vendors) have also worked to add features within BGP to assist with aggregation efforts. These are discussed in turn. 6.4.1 The NO_EXPORT BGP Community The first aid for multi-homing and prefix aggregation came in the form of the NO_EXPORT BGP Community, described as part of the BGP Community Attribute specification [8]. A prefix tagged with this community would not be advertised by one eBGP speaker to another. The idea is that a service provider would leak sub-prefixes to their upstream or peer provider to aid with traffic engineering; but tag these sub-prefixes with the "no-export" community to indicate to their upstream that these sub-prefixes should not be announced to any other autonomous system. Many providers use this community for traffic engineering purposes, but the usage is perhaps not as widespread as it could be. 6.4.2 The NOPEER BGP Community The next aid to assist with the traffic engineering and aggregation quandary was the NOPEER BGP Community. This was introduced relatively recently [9], but has had no support from the equipment vendors (no known implementations), and apparently little demand from any Internet Service Providers. The idea here is that a service provider who wishes to deaggregate to support traffic engineering for multi-homing would tag such "traffic engineering" sub-prefixes with the NOPEER community. Upstream ISPs would then propagate or discard these prefixes depending on whether the eBGP relationship would be deemed as a peer or not. Internet Service Providers generally have three types of relationships with other providers in the Internet: upstream, bi-lateral peer, or customer. Support of the NOPEER community would be provided by the providers indicating in their router configurations whether the BGP peering was with an upstream, bi-lateral peer, or customer. Upstream and customer BGP peerings would see the NOPEER tagged prefixes being propagated on the peering, whereas bi-lateral peerings would see the NOPEER tagged prefixes being discarded. This allows the edge provider attempting to carry out traffic engineering do so all the way to the "Internet core", but not see the "Internet core" having to carry the sub-prefixes being required for this traffic engineering. There are estimated to be around 10 service providers at the core of the Internet who have a no-fee peering relationship with each other [10], and with the bulk of the Internet's ASNs appearing at the edge rather than the transit core, the impact of the edge providers using the NOPEER community with attendant support in the transit core could be quite significant on the size of the routing table as seen at the "Internet core". 6.4.3 The AS_PATHLIMIT attribute The latest contribution to assist with traffic engineering needs for multi-homing ISPs has been the proposal to introduce an AS_PATHLIMIT attribute [11]. The idea here is to restrict the propagation of a prefix to a particular AS radius, as determined by the value of the AS_PATHLIMIT attribute. The attribute contains the maximum number of ASNs that can appear in the AS path (as well as the ASN which introduced the attribute). Each AS would compare the value of the attribute with the number of ASNs in the AS_PATH. If the number of ASNs in the AS_PATH is greater than the value of the AS_PATHLIMIT, the prefix would not be processed internally in the network, or propagated to eBGP peers. This would allow service providers to do localised traffic engineering with out other providers at more distant points in the Internet having to see those specific traffic engineering prefixes. 7. Recommendations The latter part of this document describes the RIPE Routing Working Group recommendations for making routing announcements to the Internet. It is hoped and expected that all network operators will follow these recommendations so that the growth of the Internet Routing Table is kept in check, and will only be as much as is absolutely essential. 7.1 Initial Allocations When the network operator receives an IP address allocation from the RIR or an assignment from their upstream ISP, the expectation of the entire Internet community is that these IP addresses are combined into the largest feasible block and announced as such to the rest of the Internet. For example, if a network operator receives a /21 from their RIR, they should configure BGP to announce only this /21 to neighbouring Autonomous Systems. 7.2 Subsequent Allocations The RIRs will, whenever possible, attempt to make subsequent allocations to their LIR members which are contiguous with previous allocations. When the network operator receives a new allocation or assignment which is the same size as the original allocation and is contiguous with it, they should combine the two address block and announce them as an aggregate. For example, if a network operator was originally allocated a /21, and now receives the neighbouring /21, if the two /21s fall on the correct bit boundary, they can be combined into a /20. They should then announce this /20 to their neighbouring ASNs, and remove the announcement of the original /21. If the subsequent allocation is not contiguous, or is contiguous but falls foul of bit boundaries, or is of a different size to the previous allocation, then there is no aggregation which can be carried out and the network operator should announce the two address blocks separately. 7.3 Multi-homing If the network operator has a multi-homed network, they will have a requirement to subdivide their address block (or blocks) to aid traffic engineering. If the operator needs to do this, they must still announce their address block, as without this announcement they will get no backup should the alternative link or links fail. The subdivision of this address block should be done prudently - tutorials have been presented at various network operations fora over the last few years explaining how this could be done, achieving maximum traffic engineering effect but with out harshly impacting the Internet Routing Table [12]. 7.4 BGP Enhancements The various BGP enhancements described in Section 6.4 should also be considered where appropriate, and where supported by the router vendors. Most of the ISPs outside the transit core will find a use for the NO_EXPORT and NOPEER BGP Communities, as well as the new AS_PATHLIMIT BGP Attribute, allowing them to limit the number of traffic engineering related sub-prefixes being propagated across the Internet. 7.5 IP version 6 While these recommendations have focused entirely on the IPv4 Internet, they are equally applicable to the use of IPv6. Participation in the IPv6 Internet is no different from participation in the IPv4 Internet, and the expectations on networks or Autonomous Systems are exactly the same in both cases. 8. Conclusion Aggregation is a necessary activity for network operators participating in today's Internet. What was taken for granted following the migration to the classless Internet in the early 90s no longer seems to be a standard activity for most network operators. The result is rampant growth of the Internet Routing Table, causing issues which impact every participant in the Internet. BGP analysis activities such as those at [13] show the potential savings on the size of the Internet Routing Table - and these savings are potentially significant, anything from 30% to 50% depending on the measurements made and the view of the Internet Routing Table being used. 9. Acknowledgments Thanks to the LINX membership for the original idea (LINX's experiment with a Routing Aggregation Policy [14]) and to Mike Hughes for the initial text which formed the basis of this document. Y. References [1] The CIDR Report. Original Idea: Tony Bates. Maintained by: Geoff Huston. http://www.cidr-report.org [2] RFC1518 - An Architecture for IP Address Allocation with CIDR Tony Li and Yakov Rekhter http://www.rfc-editor.org/rfcs/rfc1518.txt [3] RFC1519 - Classless Inter-Domain Routing (CIDR): an Address Assignment and Aggregation Strategy Vince Fuller, Tony Li, Jessica Yu and Kannan Varadhan http://www.rfc-editor.org/rfcs/rfc1519.txt [4] Geoff Huston Routing Table Status Report APRICOT 2005/APNIC 19 http://www.apnic.net/meetings/19/docs/sigs/routing/routing-pres-huston-rout… [5] The Route Views Project University of Oregon http://www.routeviews.org [6] Geoff Huston Routing Update APRICOT 2006/APNIC 21 http://www.apnic.net/meetings/21/docs/sigs/routing/routing-pres-huston-rout… [7] Craig Labovitz, Abha Ahuja, Abhijit Bose, Farnam Jihanian Delayed Internet Routing Convergence Sigcomm 2000 http://www.acm.org/sigs/sigcomm/sigcomm2000/conf/paper/sigcomm2000-5-2.pdf [8] RFC1997 - BGP Communities Attribute Ravi Chandra and Paul Traina http://www.rfc-editor.org/rfcs/rfc1997.txt [9] RFC3765 - NOPEER Community for Border Gateway Protocol (BGP) Route Scope Control. Geoff Huston http://www.rfc-editor.org/rfcs/rfc3765.txt [10] Vijay Kuhmar Adhikari, Gaurab Raj Upadhaya and Bill Woodcock AS Path Analysis SANOG 8 http://www.sanog.org/sanog8/presentations/sanog8-aspath-analysis-vijay.pdf [11] AS-PATHLIMIT Attribute Joe Abley, Tony Li, Rex Fernando http://www.ietf.org/internet-drafts/draft-ietf-idr-as-pathlimit-02.txt [12] Philip Smith BGP Multi-homing Techniques NANOG 35 http://www.nanog.org/mtg-0510/pdf/smith.pdf [13] Aggregation Potential http://bgp.potaroo.net/as4637/ [14] The Routing Aggregation Policy - A Failed Social Experiment at the LINX Nigel Titley APNIC 21 http://www.apnic.net/meetings/21/docs/sigs/ix/ix-pres-titley-aggregation.pdf Z. Authors The authors can be contacted as follows: Philip Smith <pfs(a)cisco.com> Rob Evans <rhe(a)nosc.ja.net> Mike Hughes <mike(a)linx.net>

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[routing-wg]problems with 190/8 block
by Ricardo Patara 27 Nov '06

27 Nov '06

Hello. I work for LACNIC and some of our members are still facing problems with filters for 190/8 block. Which was allocated to LACNIC back in June 2005. Details at: http://www.iana.org/assignments/ipv4-address-space We started to make allocations in this space in december 2005. Some ISPs of our region that received allocations in this address space (190/8), still face problems as their customers can't access some network, that might have filters in their borders for IANA unallocated blocks. We kindly request operators to check their filters to make sure there is not restriction to this address range it is not "unallocated" since june 2005. More specifically, we received complaints about problems to access the following networks, an that is why this messages is directed to European operators community: 146.159.0.0/16 194.209.0.0/16 62.50.64.0/19 153.108.0.0/17 Many thanks for your cooperation Ricardo Patara Registration Service Manger LACNIC

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[routing-wg]Weekly Routing Table Report
by Routing Analysis Role Account 24 Nov '06

24 Nov '06

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 25 Nov, 2006 Analysis Summary ---------------- BGP routing table entries examined: 204725 Prefixes after maximum aggregation: 110922 Unique aggregates announced to Internet: 99440 Total ASes present in the Internet Routing Table: 23764 Origin-only ASes present in the Internet Routing Table: 20720 Origin ASes announcing only one prefix: 9995 Transit ASes present in the Internet Routing Table: 3044 Transit-only ASes present in the Internet Routing Table: 80 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 29 Max AS path prepend of ASN (36728) 27 Prefixes from unregistered ASNs in the Routing Table: 3 Unregistered ASNs in the Routing Table: 3 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 8 Number of addresses announced to Internet: 1640986796 Equivalent to 97 /8s, 207 /16s and 120 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 62.8 Percentage of available address space allocated: 70.5 Total number of prefixes smaller than registry allocations: 104033 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 45291 Total APNIC prefixes after maximum aggregation: 18408 Prefixes being announced from the APNIC address blocks: 42852 Unique aggregates announced from the APNIC address blocks: 18850 APNIC Region origin ASes present in the Internet Routing Table: 2772 APNIC Region origin ASes announcing only one prefix: 779 APNIC Region transit ASes present in the Internet Routing Table: 411 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 270228320 Equivalent to 16 /8s, 27 /16s and 91 /24s Percentage of available APNIC address space announced: 84.5 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 101595 Total ARIN prefixes after maximum aggregation: 60080 Prefixes being announced from the ARIN address blocks: 74852 Unique aggregates announced from the ARIN address blocks: 28417 ARIN Region origin ASes present in the Internet Routing Table: 11180 ARIN Region origin ASes announcing only one prefix: 4263 ARIN Region transit ASes present in the Internet Routing Table: 1028 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 29 Number of ARIN addresses announced to Internet: 310956928 Equivalent to 18 /8s, 136 /16s and 211 /24s Percentage of available ARIN address space announced: 68.6 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 41995 Total RIPE prefixes after maximum aggregation: 27533 Prefixes being announced from the RIPE address blocks: 38892 Unique aggregates announced from the RIPE address blocks: 25856 RIPE Region origin ASes present in the Internet Routing Table: 8815 RIPE Region origin ASes announcing only one prefix: 4660 RIPE Region transit ASes present in the Internet Routing Table: 1412 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 22 Number of RIPE addresses announced to Internet: 278168708 Equivalent to 16 /8s, 148 /16s and 132 /24s Percentage of available RIPE address space announced: 75.4 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-41983 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 13394 Total LACNIC prefixes after maximum aggregation: 3964 Prefixes being announced from the LACNIC address blocks: 11369 Unique aggregates announced from the LACNIC address blocks: 6961 LACNIC Region origin ASes present in the Internet Routing Table: 747 LACNIC Region origin ASes announcing only one prefix: 244 LACNIC Region transit ASes present in the Internet Routing Table: 132 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 35070464 Equivalent to 2 /8s, 23 /16s and 34 /24s Percentage of available LACNIC address space announced: 52.3 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 2447 Total AfriNIC prefixes after maximum aggregation: 937 Prefixes being announced from the AfriNIC address blocks: 1683 Unique aggregates announced from the AfriNIC address blocks: 1059 AfriNIC Region origin ASes present in the Internet Routing Table: 170 AfriNIC Region origin ASes announcing only one prefix: 49 AfriNIC Region transit ASes present in the Internet Routing Table: 27 Average AfriNIC Region AS path length visible: 3.5 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 4489984 Equivalent to 0 /8s, 68 /16s and 131 /24s Percentage of available AfriNIC address space announced: 13.4 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 1230 8525 248 CHINANET-BACKBONE 4755 1038 384 69 Videsh Sanchar Nigam Ltd. Aut 9583 960 97 71 Sify Limited 9498 887 212 62 BHARTI BT INTERNET LTD. 23577 777 35 707 KRNIC 4766 742 4945 304 Korea Telecom (KIX) 1221 583 1698 448 Telstra Pty Ltd 17488 553 34 19 Hathway IP Over Cable Interne 7545 549 126 74 TPG Internet Pty Ltd 17676 501 10934 65 Softbank BB Corp. 18101 485 86 21 Reliance Infocom Ltd Internet 9443 443 111 74 Primus Telecommunications 9942 441 82 133 COMindico Australia 4812 440 751 64 China Telecom (Shanghai) 17849 423 36 126 Telecommunications Technology 4802 410 86 150 Wantree Development 17557 369 32 179 Pakistan Telecom 17974 369 129 12 PT TELEKOMUNIKASI INDONESIA 2907 333 1749 310 SINET Japan 4837 324 3620 140 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1548 6188 983 AT&T WorldNet Services 2386 1104 571 734 AT&T Data Communications Serv 4323 1044 805 297 Time Warner Telecom 6197 1025 629 498 BellSouth Network Solutions, 18566 979 272 8 Covad Communications 701 952 6707 776 UUNET Technologies, Inc. 174 938 6820 863 Cogent Communications 721 843 21921 301 DLA Systems Automation Center 1239 834 2731 582 Sprint 11492 810 98 15 Cable One 19262 783 2452 177 Verizon Global Networks 20115 766 685 411 Charter Communications 22773 714 1743 41 Cox Communications, Inc. 209 708 3762 553 Qwest 7011 692 213 432 Citizens Utilities 852 595 1087 388 Telus Advanced Communications 19916 567 48 57 OLM LLC 5668 552 161 19 CenturyTel Internet Holdings, 6198 548 526 255 BellSouth Network Solutions, 855 539 250 73 Canadian Research Network RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 546 1928 425 UUNET - Commercial IP service 3301 308 1199 292 TeliaNet Sweden 3320 297 4992 245 Deutsche Telekom AG 24863 286 44 27 LINKdotNET AS number 8220 275 472 265 COLT Telecommunications 6746 259 92 236 Dynamic Network Technologies, 680 250 2041 246 DFN-IP service G-WiN 9116 228 134 23 Goldenlines main autonomous s 3246 225 409 214 Song Networks 8708 221 279 208 Romania Data Systems S.A. 3215 220 1972 94 France Telecom Transpac 1257 218 1073 172 SWIPnet Swedish IP Network 8551 210 198 31 Bezeq International 3269 208 2357 75 TELECOM ITALIA 5416 204 13 13 BATELCO-BH 30890 202 18 82 SC Kappa Invexim SRL 6830 184 823 39 UPC Distribution Services 3300 176 171 95 AUCS Communications Services 786 171 1779 171 The JANET IP Service 3352 170 1735 32 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 759 1921 208 UniNet S.A. de C.V. 11830 484 299 19 Instituto Costarricense de El 11172 402 101 91 Servicios Alestra S.A de C.V 16814 329 20 8 NSS, S.A. 22047 307 206 11 VTR PUNTO NET S.A. 6471 267 74 31 ENTEL CHILE S.A. 14117 254 16 13 Telefonica del Sur S.A. 7303 220 98 37 Telecom Argentina Stet-France 6147 215 150 20 Telefonica Del Peru 6503 205 170 93 AVANTEL, S.A. 11556 196 97 5 Cable-Wireless Panama 10481 181 72 8 Prima S.A. 21826 150 20 39 INTERCABLE 7910 147 10 33 ANDINET ON LINE 23216 144 19 43 RAMtelecom Telecomunicaciones 19169 139 9 22 Telconet 19429 135 84 34 E.T.B. 14522 130 20 13 SatNet S.A. 18822 129 8 10 TELEFONICA MANQUEHUE 7738 116 442 21 Telecomunicacoes da Bahia S.A AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 291 804 232 The Internet Solution 8452 220 60 7 TEDATA 15475 147 84 4 Nile Online 6713 145 136 12 Itissalat Al-MAGHRIB 2018 133 297 111 Tertiary Education Network 5536 122 8 17 Internet Egypt Network 24835 116 48 6 RAYA Telecom - Egypt 33783 110 6 4 EEPAD TISP TELECOM & INTERNET 2905 78 173 71 The Internetworking Company o 2561 56 6 2 Egyptian Universities Network 15706 56 12 4 Sudatel Internet Exchange Aut 5713 40 294 33 Telkom SA Ltd 12455 40 6 3 Jambonet Autonomous system 33774 34 8 21 AS Number for Telecom Algeria 16637 33 21 25 Johnnic e-Ventures 23889 32 10 14 MAURITIUS TELECOM 8524 31 2 5 AUCEGYPT Autonomous System 15804 27 2 1 AS of The Way Out Internet So 10798 23 1 14 Standard Bank of South Africa 21280 23 4 4 Swift Global Kenya Ltd.Is an Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4134 1230 982 CHINANET-BACKBONE 18566 979 971 Covad Communications 4755 1038 969 Videsh Sanchar Nigam Ltd. Aut 9583 960 889 Sify Limited 9498 887 825 BHARTI BT INTERNET LTD. 11492 810 795 Cable One 4323 1044 747 Time Warner Telecom 22773 714 673 Cox Communications, Inc. 19262 783 606 Verizon Global Networks 8151 759 551 UniNet S.A. de C.V. 721 843 542 DLA Systems Automation Center 17488 553 534 Hathway IP Over Cable Interne 5668 552 533 CenturyTel Internet Holdings, 6197 1025 527 BellSouth Network Solutions, 19916 567 510 OLM LLC 7545 549 475 TPG Internet Pty Ltd 855 539 466 Canadian Research Network 11830 484 465 Instituto Costarricense de El 18101 485 464 Reliance Infocom Ltd Internet 15270 487 453 PaeTec.net -a division of Pae List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 65101 PRIVATE 202.133.56.0/24 9498 BHARTI BT INTERNET L 65101 PRIVATE 202.133.57.0/24 9498 BHARTI BT INTERNET L 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 198.18.0.0/15 8895 KACST/ISU Riyadh Autonomous S Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 172.33.1.0/24 7018 AT&T WorldNet Services 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.172.0.0/19 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:10 /10:13 /11:30 /12:111 /13:222 /14:397 /15:794 /16:9077 /17:3625 /18:5826 /19:12664 /20:14281 /21:12838 /22:16203 /23:17682 /24:109219 /25:658 /26:468 /27:364 /28:69 /29:44 /30:80 /31:0 /32:31 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 962 979 Covad Communications 2386 826 1104 AT&T Data Communications Serv 7018 822 1548 AT&T WorldNet Services 6197 802 1025 BellSouth Network Solutions, 11492 796 810 Cable One 9583 791 960 Sify Limited 23577 763 777 KRNIC 7011 597 692 Citizens Utilities 19916 562 567 OLM LLC 4766 553 742 Korea Telecom (KIX) 9498 539 887 BHARTI BT INTERNET LTD. 4755 464 1038 Videsh Sanchar Nigam Ltd. Aut 15270 457 487 PaeTec.net -a division of Pae 855 436 539 Canadian Research Network 5668 428 552 CenturyTel Internet Holdings, 1239 421 834 Sprint 18101 418 485 Reliance Infocom Ltd Internet 17849 409 423 Telecommunications Technology 6198 388 548 BellSouth Network Solutions, 33588 388 409 Bresnan Communications, LLC. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:66 9:1 12:1648 13:1 15:15 16:3 17:3 18:4 20:39 24:834 25:1 32:56 38:268 40:57 41:31 44:2 47:8 52:4 53:1 55:1 56:3 57:26 58:262 59:336 60:209 61:940 62:1054 63:1882 64:3180 65:2289 66:3113 67:666 68:656 69:1707 70:396 71:112 72:1018 74:110 75:32 76:14 80:829 81:762 82:651 83:373 84:476 85:755 86:420 87:423 88:253 89:625 91:84 97:1 121:74 122:31 123:3 124:459 125:730 128:285 129:205 130:125 131:323 132:46 133:9 134:177 135:42 136:179 137:113 138:187 139:50 140:525 141:134 142:346 143:199 144:252 145:67 146:322 147:140 148:367 149:175 150:108 151:118 152:82 153:121 154:5 155:261 156:148 157:162 158:152 159:138 160:97 161:86 162:217 163:161 164:238 165:235 166:244 167:272 168:487 169:123 170:394 171:11 172:1 190:307 192:5737 193:3576 194:2797 195:2133 196:893 198:3777 199:3294 200:4595 201:963 202:6946 203:7124 204:3944 205:2100 206:2400 207:2906 208:2317 209:3554 210:2215 211:873 212:1425 213:1479 214:383 215:39 216:4118 217:1165 218:349 219:256 220:811 221:357 222:251 End of report Report Website: http://thyme.apnic.net

1 0

[routing-wg]Weekly Routing Table Report
by Routing Analysis Role Account 17 Nov '06

17 Nov '06

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 18 Nov, 2006 Analysis Summary ---------------- BGP routing table entries examined: 203977 Prefixes after maximum aggregation: 110635 Unique aggregates announced to Internet: 99054 Total ASes present in the Internet Routing Table: 23714 Origin-only ASes present in the Internet Routing Table: 20668 Origin ASes announcing only one prefix: 9968 Transit ASes present in the Internet Routing Table: 3046 Transit-only ASes present in the Internet Routing Table: 82 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 29 Max AS path prepend of ASN (36728) 27 Prefixes from unregistered ASNs in the Routing Table: 1 Unregistered ASNs in the Routing Table: 3 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 7 Number of addresses announced to Internet: 1636930476 Equivalent to 97 /8s, 145 /16s and 147 /24s Percentage of available address space announced: 44.2 Percentage of allocated address space announced: 62.7 Percentage of available address space allocated: 70.5 Total number of prefixes smaller than registry allocations: 103463 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 45034 Total APNIC prefixes after maximum aggregation: 18334 Prefixes being announced from the APNIC address blocks: 42613 Unique aggregates announced from the APNIC address blocks: 18655 APNIC Region origin ASes present in the Internet Routing Table: 2761 APNIC Region origin ASes announcing only one prefix: 779 APNIC Region transit ASes present in the Internet Routing Table: 411 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 269241056 Equivalent to 16 /8s, 12 /16s and 74 /24s Percentage of available APNIC address space announced: 84.2 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 101463 Total ARIN prefixes after maximum aggregation: 59963 Prefixes being announced from the ARIN address blocks: 74702 Unique aggregates announced from the ARIN address blocks: 28353 ARIN Region origin ASes present in the Internet Routing Table: 11159 ARIN Region origin ASes announcing only one prefix: 4256 ARIN Region transit ASes present in the Internet Routing Table: 1032 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 29 Number of ARIN addresses announced to Internet: 310888832 Equivalent to 18 /8s, 135 /16s and 201 /24s Percentage of available ARIN address space announced: 68.6 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 41751 Total RIPE prefixes after maximum aggregation: 27478 Prefixes being announced from the RIPE address blocks: 38656 Unique aggregates announced from the RIPE address blocks: 25768 RIPE Region origin ASes present in the Internet Routing Table: 8794 RIPE Region origin ASes announcing only one prefix: 4639 RIPE Region transit ASes present in the Internet Routing Table: 1412 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 22 Number of RIPE addresses announced to Internet: 276008708 Equivalent to 16 /8s, 115 /16s and 143 /24s Percentage of available RIPE address space announced: 74.8 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-41983 RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 13339 Total LACNIC prefixes after maximum aggregation: 3928 Prefixes being announced from the LACNIC address blocks: 11292 Unique aggregates announced from the LACNIC address blocks: 6919 LACNIC Region origin ASes present in the Internet Routing Table: 751 LACNIC Region origin ASes announcing only one prefix: 246 LACNIC Region transit ASes present in the Internet Routing Table: 132 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 17 Number of LACNIC addresses announced to Internet: 34189056 Equivalent to 2 /8s, 9 /16s and 175 /24s Percentage of available LACNIC address space announced: 50.9 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 2389 Total AfriNIC prefixes after maximum aggregation: 932 Prefixes being announced from the AfriNIC address blocks: 1656 Unique aggregates announced from the AfriNIC address blocks: 1052 AfriNIC Region origin ASes present in the Internet Routing Table: 167 AfriNIC Region origin ASes announcing only one prefix: 48 AfriNIC Region transit ASes present in the Internet Routing Table: 27 Average AfriNIC Region AS path length visible: 3.5 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 4487168 Equivalent to 0 /8s, 68 /16s and 120 /24s Percentage of available AfriNIC address space announced: 13.4 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 1231 8533 248 CHINANET-BACKBONE 4755 1032 384 67 Videsh Sanchar Nigam Ltd. Aut 9583 935 109 15 Sify Limited 9498 884 212 64 BHARTI BT INTERNET LTD. 23577 772 35 702 KRNIC 4766 743 4945 305 Korea Telecom (KIX) 1221 584 1714 449 Telstra Pty Ltd 17488 552 34 18 Hathway IP Over Cable Interne 7545 547 124 73 TPG Internet Pty Ltd 17676 500 10934 64 Softbank BB Corp. 18101 482 86 21 Reliance Infocom Ltd Internet 9443 443 111 74 Primus Telecommunications 9942 440 82 132 COMindico Australia 4812 439 749 63 China Telecom (Shanghai) 17849 430 36 126 Telecommunications Technology 4802 411 86 151 Wantree Development 17974 369 129 12 PT TELEKOMUNIKASI INDONESIA 17557 368 32 179 Pakistan Telecom 2907 333 1749 310 SINET Japan 4837 320 3553 138 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1545 6188 980 AT&T WorldNet Services 2386 1109 570 738 AT&T Data Communications Serv 4323 1038 804 298 Time Warner Telecom 6197 1023 626 496 BellSouth Network Solutions, 18566 977 272 8 Covad Communications 701 948 6706 772 UUNET Technologies, Inc. 174 945 6822 870 Cogent Communications 721 846 21922 302 DLA Systems Automation Center 1239 838 2731 585 Sprint 20115 834 687 413 Charter Communications 11492 806 98 15 Cable One 19262 784 2436 177 Verizon Global Networks 22773 714 1743 41 Cox Communications, Inc. 209 709 3761 553 Qwest 7011 691 213 431 Citizens Utilities 852 592 1084 386 Telus Advanced Communications 19916 567 48 57 OLM LLC 5668 550 161 19 CenturyTel Internet Holdings, 6198 548 526 255 BellSouth Network Solutions, 855 540 250 74 Canadian Research Network RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 553 1929 431 UUNET - Commercial IP service 3301 313 1200 296 TeliaNet Sweden 3320 298 4992 246 Deutsche Telekom AG 24863 286 44 27 LINKdotNET AS number 8220 272 472 262 COLT Telecommunications 6746 259 92 236 Dynamic Network Technologies, 680 250 2041 246 DFN-IP service G-WiN 3246 230 459 219 Song Networks 9116 228 134 23 Goldenlines main autonomous s 8708 221 279 208 Romania Data Systems S.A. 3215 219 1964 93 France Telecom Transpac 1257 218 1073 172 SWIPnet Swedish IP Network 8551 215 198 30 Bezeq International 3269 208 2357 75 TELECOM ITALIA 30890 194 17 83 SC Kappa Invexim SRL 5416 188 13 13 BATELCO-BH 3300 176 171 95 AUCS Communications Services 6830 173 695 38 UPC Distribution Services 786 171 1779 171 The JANET IP Service 3352 168 1703 31 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 759 1921 208 UniNet S.A. de C.V. 11830 484 299 19 Instituto Costarricense de El 11172 400 101 89 Servicios Alestra S.A de C.V 16814 329 20 8 NSS, S.A. 22047 307 206 11 VTR PUNTO NET S.A. 6471 266 74 30 ENTEL CHILE S.A. 14117 254 16 13 Telefonica del Sur S.A. 6147 223 150 23 Telefonica Del Peru 7303 214 96 38 Telecom Argentina Stet-France 6503 209 170 94 AVANTEL, S.A. 11556 195 96 4 Cable-Wireless Panama 10481 181 72 8 Prima S.A. 21826 151 20 34 INTERCABLE 23216 143 19 43 RAMtelecom Telecomunicaciones 19169 139 9 22 Telconet 19429 135 84 34 E.T.B. 14522 130 20 13 SatNet S.A. 18822 129 8 10 TELEFONICA MANQUEHUE 7910 127 9 35 ANDINET ON LINE 7738 116 442 21 Telecomunicacoes da Bahia S.A AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 293 804 233 The Internet Solution 8452 186 60 9 TEDATA 15475 153 84 4 Nile Online 6713 145 139 12 Itissalat Al-MAGHRIB 2018 133 297 111 Tertiary Education Network 5536 122 8 17 Internet Egypt Network 24835 116 48 6 RAYA Telecom - Egypt 33783 110 6 4 EEPAD TISP TELECOM & INTERNET 2905 78 173 71 The Internetworking Company o 2561 56 6 2 Egyptian Universities Network 15706 56 12 4 Sudatel Internet Exchange Aut 12455 40 6 3 Jambonet Autonomous system 5713 36 293 32 Telkom SA Ltd 33774 34 8 21 AS Number for Telecom Algeria 16637 33 21 25 Johnnic e-Ventures 8524 31 2 5 AUCEGYPT Autonomous System 23889 30 9 12 MAURITIUS TELECOM 21280 26 4 4 Swift Global Kenya Ltd.Is an 10798 23 1 14 Standard Bank of South Africa 33766 21 2 1 Nyala Communications Pty Ltd Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4134 1231 983 CHINANET-BACKBONE 18566 977 969 Covad Communications 4755 1032 965 Videsh Sanchar Nigam Ltd. Aut 9583 935 920 Sify Limited 9498 884 820 BHARTI BT INTERNET LTD. 11492 806 791 Cable One 4323 1038 740 Time Warner Telecom 22773 714 673 Cox Communications, Inc. 19262 784 607 Verizon Global Networks 8151 759 551 UniNet S.A. de C.V. 721 846 544 DLA Systems Automation Center 17488 552 534 Hathway IP Over Cable Interne 5668 550 531 CenturyTel Internet Holdings, 6197 1023 527 BellSouth Network Solutions, 19916 567 510 OLM LLC 7545 547 474 TPG Internet Pty Ltd 855 540 466 Canadian Research Network 11830 484 465 Instituto Costarricense de El 18101 482 461 Reliance Infocom Ltd Internet 15270 485 451 PaeTec.net -a division of Pae List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 198.18.0.0/15 8895 KACST/ISU Riyadh Autonomous S Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.172.0.0/19 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:10 /10:13 /11:30 /12:110 /13:220 /14:398 /15:795 /16:9058 /17:3599 /18:5810 /19:12653 /20:14225 /21:12745 /22:16148 /23:17608 /24:108822 /25:661 /26:476 /27:359 /28:67 /29:41 /30:80 /31:0 /32:30 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 960 977 Covad Communications 2386 827 1109 AT&T Data Communications Serv 7018 822 1545 AT&T WorldNet Services 6197 802 1023 BellSouth Network Solutions, 11492 792 806 Cable One 9583 766 935 Sify Limited 23577 758 772 KRNIC 7011 596 691 Citizens Utilities 19916 562 567 OLM LLC 4766 554 743 Korea Telecom (KIX) 9498 535 884 BHARTI BT INTERNET LTD. 4755 462 1032 Videsh Sanchar Nigam Ltd. Aut 15270 455 485 PaeTec.net -a division of Pae 855 436 540 Canadian Research Network 5668 426 550 CenturyTel Internet Holdings, 1239 420 838 Sprint 17849 416 430 Telecommunications Technology 18101 415 482 Reliance Infocom Ltd Internet 6198 388 548 BellSouth Network Solutions, 33588 387 408 Bresnan Communications, LLC. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:61 9:1 12:1639 13:1 15:15 16:3 17:3 18:4 20:39 24:850 25:1 32:56 38:265 40:57 41:23 44:2 47:8 52:4 53:1 55:1 56:3 57:26 58:263 59:319 60:221 61:946 62:1060 63:1880 64:3164 65:2285 66:3050 67:658 68:657 69:1700 70:403 71:114 72:996 74:112 75:42 76:14 80:830 81:749 82:641 83:385 84:457 85:759 86:418 87:419 88:244 89:619 91:75 121:67 122:27 123:3 124:440 125:708 128:290 129:206 130:125 131:315 132:35 133:9 134:177 135:42 136:179 137:113 138:186 139:49 140:525 141:134 142:347 143:192 144:246 145:67 146:324 147:138 148:367 149:175 150:115 151:118 152:83 153:121 154:5 155:261 156:147 157:161 158:152 159:173 160:98 161:88 162:215 163:154 164:237 165:235 166:243 167:270 168:488 169:124 170:389 171:11 190:287 192:5745 193:3579 194:2779 195:2138 196:878 198:3779 199:3292 200:4576 201:954 202:6948 203:7152 204:3934 205:2089 206:2416 207:2896 208:2326 209:3556 210:2166 211:873 212:1372 213:1448 214:382 215:39 216:4130 217:1164 218:341 219:257 220:794 221:356 222:250 End of report Report Website: http://thyme.apnic.net

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