- routing-wg - mailman.ripe.net

Various reports posted here
by Daniel Roesen 23 May '05

23 May '05

Hi, currently, we have both the CIDR Report and APNIC's weekly routing table report being posted here on the routing-wg list. The CIDR report is also posted to the EOF list. Given that both reports are somewhat operational stuff, I think that both belong to the EOF list (as "equivalent" of NANOG, AFNOG etc.), but not too much to the routing-wg list. My suggestion would be to ask Geoff to cease posting to routing-wg (but keep eof-list) and ask APNIC to post to EOF-list instead. How do people feel about that? Does that make sense? Best regards, Daniel -- CLUE-RIPE -- Jabber: dr(a)cluenet.de -- dr@IRCnet -- PGP: 0xA85C8AA0

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Bruno MARTINOU have limited access to e-mail.
by Bruno.Martinou＠equant.com 21 May '05

21 May '05

I will be out of the office starting 19/05/2005 and will not return until 23/05/2005. I will not be at my desk thursday/friday and will have limited access to my e-mail

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Weekly Routing Table Report
by Routing Table Analysis 20 May '05

20 May '05

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 If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 21 May, 2005 Analysis Summary ---------------- BGP routing table entries examined: 162634 Prefixes after maximum aggregation: 94526 Unique aggregates announced to Internet: 78573 Total ASes present in the Internet Routing Table: 19683 Origin-only ASes present in the Internet Routing Table: 17118 Origin ASes announcing only one prefix: 8031 Transit ASes present in the Internet Routing Table: 2565 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 23 Prefixes from unregistered ASNs in the Routing Table: 6 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1408266304 Equivalent to 83 /8s, 240 /16s and 112 /24s Percentage of available address space announced: 38.0 Percentage of allocated address space announced: 59.6 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 76383 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33381 Total APNIC prefixes after maximum aggregation: 15685 Prefixes being announced from the APNIC address blocks: 31300 Unique aggregates announced from the APNIC address blocks: 15912 APNIC Region origin ASes present in the Internet Routing Table: 2269 APNIC Region origin ASes announcing only one prefix: 664 APNIC Region transit ASes present in the Internet Routing Table: 345 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 183481472 Equivalent to 10 /8s, 239 /16s and 180 /24s Percentage of available APNIC address space announced: 68.1 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575 APNIC Address Blocks 58/7, 60/7, 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: 88143 Total ARIN prefixes after maximum aggregation: 53715 Prefixes being announced from the ARIN address blocks: 68822 Unique aggregates announced from the ARIN address blocks: 25321 ARIN Region origin ASes present in the Internet Routing Table: 9942 ARIN Region origin ASes announcing only one prefix: 3622 ARIN Region transit ASes present in the Internet Routing Table: 942 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 248514304 Equivalent to 14 /8s, 208 /16s and 7 /24s Percentage of available ARIN address space announced: 70.5 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 30758 Total RIPE prefixes after maximum aggregation: 21301 Prefixes being announced from the RIPE address blocks: 27836 Unique aggregates announced from the RIPE address blocks: 18628 RIPE Region origin ASes present in the Internet Routing Table: 6657 RIPE Region origin ASes announcing only one prefix: 3514 RIPE Region transit ASes present in the Internet Routing Table: 1117 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 204993984 Equivalent to 12 /8s, 55 /16s and 245 /24s Percentage of available RIPE address space announced: 71.9 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 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 8707 Total LACNIC prefixes after maximum aggregation: 3058 Prefixes being announced from the LACNIC address blocks: 7114 Unique aggregates announced from the LACNIC address blocks: 4142 LACNIC Region origin ASes present in the Internet Routing Table: 622 LACNIC Region origin ASes announcing only one prefix: 195 LACNIC Region transit ASes present in the Internet Routing Table: 114 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 18896896 Equivalent to 1 /8s, 32 /16s and 88 /24s Percentage of available LACNIC address space announced: 56.3 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1633 Total AfriNIC prefixes after maximum aggregation: 767 Prefixes being announced from the AfriNIC address blocks: 998 Unique aggregates announced from the AfriNIC address blocks: 776 AfriNIC Region origin ASes present in the Internet Routing Table: 125 AfriNIC Region origin ASes announcing only one prefix: 36 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2277120 Equivalent to 0 /8s, 34 /16s and 191 /24s Percentage of available AfriNIC address space announced: 6.8 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 908 5141 187 CHINANET-BACKBONE 1221 752 1182 540 Telstra Pty Ltd 9583 730 54 77 Sify Limited 4755 602 246 124 Videsh Sanchar Nigam Ltd. Aut 4766 592 3413 279 Korea Telecom (KIX) 7545 497 88 71 TPG Internet Pty Ltd 17676 431 6509 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 359 197 46 China Netcom Corp. 2907 345 1838 319 SINET Japan 10036 321 29 288 C&M Communication Co. Ltd. 17557 312 22 150 Pakistan Telecom 4808 308 249 168 CNCGROUP IP network: China169 7474 307 270 210 SingTel Optus Pty Ltd 9498 291 83 59 BHARTI BT INTERNET LTD. 4802 286 48 164 Wantree Development 17974 259 65 14 PT TELEKOMUNIKASI INDONESIA 703 256 277 211 UUNET - Commercial IP service 18302 254 107 142 SK Global co., Ltd 2764 252 238 197 AAPT Limited ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1486 6455 961 AT&T WorldNet Services 174 1170 5609 1001 Cogent Communications 721 1109 21755 312 DLA Systems Automation Center 4323 1108 647 217 Time Warner Telecom 701 1019 8218 858 UUNET Technologies, Inc. 6197 908 380 464 BellSouth Network Solutions, 1239 896 2869 651 Sprint 2386 853 532 634 AT&T Data Communications Serv 18566 812 224 7 Covad Communications 209 655 3521 494 Qwest 20115 596 505 314 Charter Communications 3356 581 10842 438 Level 3 Communications, LLC 27364 565 43 18 Armstrong Cable Services 3561 533 2384 418 Savvis 852 531 1095 391 Telus Advanced Communications 3602 524 123 99 Sprint Canada, Inc. 22773 484 1188 21 Cox Communications, Inc. 5668 473 115 25 CenturyTel Internet Holdings, 6198 468 445 210 BellSouth Network Solutions, 7725 450 60 15 MediaOne RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 595 2003 487 UUNET - Commercial IP service 3320 303 3233 237 Deutsche Telekom AG 3301 294 1084 282 TeliaNet Sweden 8220 274 469 268 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 231 491 226 Song Networks 8708 229 252 213 Romania Data Systems S.A. 1257 200 728 176 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 6746 165 47 144 Dynamic Network Technologies, 3269 164 1488 69 TELECOM ITALIA 8866 164 21 11 Bulgarian Telecommunication C 5400 162 285 136 BT Ignite European Backbone 719 160 340 102 LANLINK autonomous system 3300 153 184 86 AUCS Communications Services 6830 137 513 27 UPC Distribution Services 25186 136 137 96 France Telecom Transpac's Tra 9051 131 8 30 INCONET Autonomous System 2856 128 2305 116 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 372 598 150 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 218 98 53 Servicios Alestra S.A de C.V 6147 177 102 20 Telefonica Del Peru 11664 157 19 22 Keytech SA 7303 148 68 21 Telecom Argentina Stet-France 14117 136 9 5 Telefonica del Sur S.A. 6505 133 90 89 Global One Communicaoes Ltda 22047 131 96 6 VTR PUNTO NET S.A. 19632 119 14 5 Metropolis Intercom S.A. 13999 113 52 9 Mega Cable S.A. de C.V. 11556 111 55 7 Cable-Wireless Panama 18822 105 7 15 TELEFONICA MANQUEHUE 6503 102 146 72 AVANTEL, S.A. 10481 101 40 7 Prima S.A. 19169 100 6 17 Telconet 22927 97 73 25 TELEFONICA DE ARGENTINA 23216 94 24 23 RAMtelecom Telecomunicaciones 21826 92 12 18 INTERCABLE 11311 89 8 18 Sinectis S.A. AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 268 637 224 The Internet Solution 5536 119 15 17 Internet Egypt Network 20928 93 16 2 Noor Advanced Technologies AS 2018 90 295 86 Tertiary Education Network 8452 81 28 6 TEDATA 2905 74 266 68 The Internetworking Company o 24835 63 34 6 RAYA Telecom - Egypt 6713 59 54 8 Itissalat Al-MAGHRIB 9129 44 3 3 UUNET Kenya 12455 39 6 3 Jambonet Autonomous system 5713 36 142 29 Telkom SA Ltd 15475 32 84 4 Nile Online 15706 31 8 3 Sudatel Internet Exchange Aut 8524 24 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 33765 19 3 8 TANZANIA TELECOMMUNICATIONS C 7460 17 3 5 LIA Internet Access 12258 17 3 11 Vodacom Internet Company 21491 17 1 3 UTL On-line is RF broadband I Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1108 891 Time Warner Telecom 18566 812 805 Covad Communications 721 1109 797 DLA Systems Automation Center 4134 908 721 CHINANET-BACKBONE 9583 730 653 Sify Limited 27364 565 547 Armstrong Cable Services 4755 602 478 Videsh Sanchar Nigam Ltd. Aut 22773 484 463 Cox Communications, Inc. 5668 473 448 CenturyTel Internet Holdings, 6197 908 444 BellSouth Network Solutions, 7725 450 435 MediaOne 7545 497 426 TPG Internet Pty Ltd 3602 524 425 Sprint Canada, Inc. 6467 419 384 E.Spire Communications, Inc. 17676 431 358 Softbank BB Corp. 6140 407 330 ImpSat 4766 592 313 Korea Telecom (KIX) 9929 359 313 China Netcom Corp. 9443 370 294 Primus Telecommunications 20115 596 282 Charter Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65050 PRIVATE 168.96.148.0/24 6140 ImpSat 64512 PRIVATE 200.61.32.0/23 11664 Keytech SA 64512 PRIVATE 200.61.48.0/20 11664 Keytech SA 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 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 172.32.0.0/24 7011 Citizens Utilities 172.122.28.0/24 210 Utah Education Network 192.43.230.0/24 7575 Australian Academic and Rease 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 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.172.0.0/19 721 DLA Systems Automation Center 192.200.100.0/24 7018 AT&T WorldNet Services Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:8 /11:15 /12:70 /13:154 /14:306 /15:600 /16:8392 /17:2548 /18:4397 /19:10334 /20:11161 /21:9039 /22:12509 /23:13486 /24:88711 /25:288 /26:244 /27:139 /28:64 /29:39 /30:74 /31:0 /32:34 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 796 812 Covad Communications 6197 746 908 BellSouth Network Solutions, 7018 680 1486 AT&T WorldNet Services 2386 603 853 AT&T Data Communications Serv 27364 556 565 Armstrong Cable Services 9583 547 730 Sify Limited 4323 525 1108 Time Warner Telecom 7725 423 450 MediaOne 4766 409 592 Korea Telecom (KIX) 5668 394 473 CenturyTel Internet Holdings, 1239 377 896 Sprint 702 366 595 UUNET - Commercial IP service 6198 340 468 BellSouth Network Solutions, 10036 321 321 C&M Communication Co. Ltd. 6517 299 322 Yipes Communications, Inc. 7011 299 349 Citizens Utilities 6467 297 419 E.Spire Communications, Inc. 9929 280 359 China Netcom Corp. 11456 280 321 Carolina Online, Inc. 15270 264 284 PaeTec.net -a division of Pae Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 8:13 12:1548 13:1 15:9 16:2 17:3 18:4 20:4 24:1135 30:2 32:68 33:4 38:117 40:53 44:3 47:2 52:4 55:2 56:3 57:22 58:88 59:37 60:36 61:796 62:610 63:1881 64:2742 65:2068 66:2873 67:575 68:529 69:1027 70:108 71:8 72:197 80:567 81:545 82:410 83:262 84:182 85:202 86:15 128:148 129:174 130:83 131:280 132:36 133:1 134:151 135:40 136:189 137:64 138:169 139:57 140:193 141:105 142:149 143:145 144:186 145:33 146:282 147:106 148:297 149:165 150:97 151:65 152:106 153:86 154:5 155:143 156:78 157:95 158:159 159:169 160:89 161:72 162:205 163:87 164:207 165:174 166:156 167:231 168:424 169:140 170:316 171:8 172:2 192:5717 193:3142 194:2376 195:1554 196:657 198:3931 199:3281 200:3914 201:134 202:5595 203:6211 204:3829 205:2017 206:2473 207:2793 208:2056 209:3286 210:1682 211:826 212:1155 213:1277 214:265 215:30 216:3446 217:1138 218:200 219:106 220:372 221:218 222:103 End of report

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The Cidr Report
by cidr-report＠potaroo.net 20 May '05

20 May '05

This report has been generated at Fri May 20 21:44:53 2005 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 13-05-05 158437 108358 14-05-05 158493 108273 15-05-05 158384 108308 16-05-05 158462 108354 17-05-05 158543 108072 18-05-05 158640 108055 19-05-05 158312 108113 20-05-05 158685 108158 AS Summary 19577 Number of ASes in routing system 8029 Number of ASes announcing only one prefix 1461 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 90462976 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - 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'). --- 20May05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 158916 108191 50725 31.9% All ASes AS4323 1102 220 882 80.0% TWTC - Time Warner Telecom AS18566 812 8 804 99.0% COVAD - Covad Communications AS4134 895 222 673 75.2% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1111 562 549 49.4% DLA-ASNBLOCK-AS - DoD Network Information Center AS27364 565 22 543 96.1% ACS-INTERNET - Armstrong Cable Services AS7018 1461 940 521 35.7% ATT-INTERNET4 - AT&T WorldNet Services AS22773 484 23 461 95.2% CCINET-2 - Cox Communications Inc. AS7725 450 21 429 95.3% CCH-AS7 - Comcast Cable Communications Holdings, Inc AS6197 904 516 388 42.9% BATI-ATL - BellSouth Network Solutions, Inc AS3602 524 142 382 72.9% SPRINT-CA-AS - Sprint Canada Inc. AS6467 418 44 374 89.5% ESPIRECOMM - e.spire Communications, Inc. AS17676 431 78 353 81.9% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 348 46 302 86.8% CNCNET-CN China Netcom Corp. AS4766 577 281 296 51.3% KIXS-AS-KR Korea Telecom AS6140 407 126 281 69.0% IMPSAT-USA - ImpSat AS14654 268 6 262 97.8% WAYPORT - Wayport AS9443 374 123 251 67.1% INTERNETPRIMUS-AS-AP Primus Telecommunications AS6478 400 152 248 62.0% ATT-INTERNET3 - AT&T WorldNet Services AS7545 497 250 247 49.7% TPG-INTERNET-AP TPG Internet Pty Ltd AS15270 277 37 240 86.6% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS1239 888 652 236 26.6% SPRINTLINK - Sprint AS23126 255 20 235 92.2% KMCTELCOM-DIA - KMC Telecom, Inc. AS4755 519 287 232 44.7% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS5668 487 260 227 46.6% AS-5668 - CenturyTel Internet Holdings, Inc. AS6198 464 238 226 48.7% BATI-MIA - BellSouth Network Solutions, Inc AS9498 292 66 226 77.4% BBIL-AP BHARTI BT INTERNET LTD. AS9583 729 506 223 30.6% SIFY-AS-IN Sify Limited AS2386 854 637 217 25.4% INS-AS - AT&T Data Communications Services AS11456 321 107 214 66.7% NUVOX - NuVox Communications, Inc. AS6167 265 68 197 74.3% CELLCO-PART - Cellco Partnership Total 17379 6660 10719 61.7% Top 30 total Possible Bogus Routes 172.32.0.0/24 AS7011 CITLINK - Citizens Utilities 172.122.28.0/24 AS210 WEST-NET-WEST - Utah Education Network 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 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 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 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.3.162.0/24 AS6083 AFRINIC African Network Information Center 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc. 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MBNET-AS - Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - 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 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - 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 199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 202.86.252.0/22 AS4748 RESOLINK-AS Resources Linke Network Limited 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 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. 204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 208.53.224.0/19 AS13576 SDNET - SOUTH DAKOTA NETWORK 208.138.48.0/20 AS6971 ATG-1 - Advanced Telcom Group, Inc 209.40.208.0/21 AS16592 Cybernet El Salvador 209.40.216.0/21 AS16592 Cybernet El Salvador 209.134.0.0/18 AS8082 WORLDSITE - Worldsite Networks 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 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. 209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL - Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.82.160.0/20 AS13823 CALYX-USA - Calyx Internet Access Corp. 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications 216.178.37.0/24 AS3356 LEVEL3 Level 3 Communications 216.178.39.0/24 AS3356 LEVEL3 Level 3 Communications 216.178.42.0/24 AS3356 LEVEL3 Level 3 Communications 216.178.43.0/24 AS3356 LEVEL3 Level 3 Communications 216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet 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 swinog(a)swinog.ch

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Weekly Routing Table Report
by Routing Table Analysis 13 May '05

13 May '05

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 If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 14 May, 2005 Analysis Summary ---------------- BGP routing table entries examined: 162108 Prefixes after maximum aggregation: 94259 Unique aggregates announced to Internet: 78235 Total ASes present in the Internet Routing Table: 19652 Origin-only ASes present in the Internet Routing Table: 17086 Origin ASes announcing only one prefix: 8015 Transit ASes present in the Internet Routing Table: 2566 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 23 Prefixes from unregistered ASNs in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 33 Number of addresses announced to Internet: 1391460672 Equivalent to 82 /8s, 240 /16s and 1 /24s Percentage of available address space announced: 37.5 Percentage of allocated address space announced: 58.9 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 76090 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33164 Total APNIC prefixes after maximum aggregation: 15592 Prefixes being announced from the APNIC address blocks: 31094 Unique aggregates announced from the APNIC address blocks: 15795 APNIC Region origin ASes present in the Internet Routing Table: 2265 APNIC Region origin ASes announcing only one prefix: 664 APNIC Region transit ASes present in the Internet Routing Table: 342 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 182890112 Equivalent to 10 /8s, 230 /16s and 174 /24s Percentage of available APNIC address space announced: 67.9 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575 APNIC Address Blocks 58/7, 60/7, 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: 87932 Total ARIN prefixes after maximum aggregation: 53612 Prefixes being announced from the ARIN address blocks: 68656 Unique aggregates announced from the ARIN address blocks: 25198 ARIN Region origin ASes present in the Internet Routing Table: 9936 ARIN Region origin ASes announcing only one prefix: 3619 ARIN Region transit ASes present in the Internet Routing Table: 944 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 247977984 Equivalent to 14 /8s, 199 /16s and 216 /24s Percentage of available ARIN address space announced: 70.4 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 30781 Total RIPE prefixes after maximum aggregation: 21276 Prefixes being announced from the RIPE address blocks: 27830 Unique aggregates announced from the RIPE address blocks: 18584 RIPE Region origin ASes present in the Internet Routing Table: 6644 RIPE Region origin ASes announcing only one prefix: 3500 RIPE Region transit ASes present in the Internet Routing Table: 1119 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 205021632 Equivalent to 12 /8s, 56 /16s and 97 /24s Percentage of available RIPE address space announced: 71.9 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 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 8623 Total LACNIC prefixes after maximum aggregation: 3013 Prefixes being announced from the LACNIC address blocks: 7049 Unique aggregates announced from the LACNIC address blocks: 4101 LACNIC Region origin ASes present in the Internet Routing Table: 617 LACNIC Region origin ASes announcing only one prefix: 196 LACNIC Region transit ASes present in the Internet Routing Table: 114 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 18751744 Equivalent to 1 /8s, 30 /16s and 33 /24s Percentage of available LACNIC address space announced: 55.9 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1588 Total AfriNIC prefixes after maximum aggregation: 766 Prefixes being announced from the AfriNIC address blocks: 972 Unique aggregates announced from the AfriNIC address blocks: 773 AfriNIC Region origin ASes present in the Internet Routing Table: 124 AfriNIC Region origin ASes announcing only one prefix: 36 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2272256 Equivalent to 0 /8s, 34 /16s and 172 /24s Percentage of available AfriNIC address space announced: 6.8 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 906 5136 185 CHINANET-BACKBONE 1221 757 1182 543 Telstra Pty Ltd 9583 735 54 75 Sify Limited 4755 590 244 123 Videsh Sanchar Nigam Ltd. Aut 4766 590 3413 279 Korea Telecom (KIX) 7545 495 88 72 TPG Internet Pty Ltd 17676 431 6509 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 360 197 46 China Netcom Corp. 2907 345 1838 319 SINET Japan 10036 317 29 286 C&M Communication Co. Ltd. 17557 311 22 149 Pakistan Telecom 4808 309 251 169 CNCGROUP IP network: China169 7474 303 270 208 SingTel Optus Pty Ltd 9498 296 83 59 BHARTI BT INTERNET LTD. 4802 281 47 166 Wantree Development 17974 258 65 14 PT TELEKOMUNIKASI INDONESIA 703 255 277 210 UUNET - Commercial IP service 2764 253 238 198 AAPT Limited 18302 247 75 141 SK Global co., Ltd ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1489 6486 953 AT&T WorldNet Services 174 1179 5611 1009 Cogent Communications 721 1115 21755 312 DLA Systems Automation Center 4323 1105 648 218 Time Warner Telecom 701 1004 8233 856 UUNET Technologies, Inc. 6197 905 378 461 BellSouth Network Solutions, 1239 899 2869 651 Sprint 2386 853 533 633 AT&T Data Communications Serv 18566 806 224 7 Covad Communications 209 655 3521 495 Qwest 20115 594 503 312 Charter Communications 3356 578 10833 436 Level 3 Communications, LLC 27364 565 43 18 Armstrong Cable Services 3561 537 2400 421 Savvis 852 531 1095 391 Telus Advanced Communications 3602 513 122 97 Sprint Canada, Inc. 5668 487 115 25 CenturyTel Internet Holdings, 22773 483 1188 21 Cox Communications, Inc. 6198 465 382 219 BellSouth Network Solutions, 7725 449 60 15 MediaOne RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 596 2003 488 UUNET - Commercial IP service 3320 303 3233 237 Deutsche Telekom AG 3301 292 1084 281 TeliaNet Sweden 8220 272 469 266 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 491 227 Song Networks 8708 229 252 212 Romania Data Systems S.A. 1257 200 728 176 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 6746 165 47 144 Dynamic Network Technologies, 3269 164 1488 69 TELECOM ITALIA 8866 164 21 11 Bulgarian Telecommunication C 5400 161 285 135 BT Ignite European Backbone 719 159 340 101 LANLINK autonomous system 3300 155 185 88 AUCS Communications Services 25186 138 137 98 France Telecom Transpac's Tra 6830 137 513 27 UPC Distribution Services 9051 128 8 34 INCONET Autonomous System 2856 127 2304 115 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 373 598 147 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 225 99 54 Servicios Alestra S.A de C.V 6147 177 102 20 Telefonica Del Peru 11664 153 19 22 Keytech SA 7303 148 68 21 Telecom Argentina Stet-France 14117 136 9 5 Telefonica del Sur S.A. 6505 131 90 88 Global One Communicaoes Ltda 22047 131 96 6 VTR PUNTO NET S.A. 19632 119 14 5 Metropolis Intercom S.A. 13999 112 52 9 Mega Cable S.A. de C.V. 11556 111 55 7 Cable-Wireless Panama 18822 105 7 15 TELEFONICA MANQUEHUE 6503 103 146 73 AVANTEL, S.A. 19169 99 6 16 Telconet 10481 98 40 7 Prima S.A. 21826 92 12 18 INTERCABLE 22927 92 65 22 TELEFONICA DE ARGENTINA 11311 89 8 18 Sinectis S.A. 23216 89 24 23 RAMtelecom Telecomunicaciones AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 270 637 225 The Internet Solution 5536 119 15 17 Internet Egypt Network 20928 93 16 2 Noor Advanced Technologies AS 2018 90 295 86 Tertiary Education Network 2905 74 266 68 The Internetworking Company o 8452 71 28 6 TEDATA 24835 63 34 6 RAYA Telecom - Egypt 9129 44 3 3 UUNET Kenya 12455 39 6 3 Jambonet Autonomous system 5713 36 142 29 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 15706 31 8 3 Sudatel Internet Exchange Aut 2609 26 26 3 Tunisia BackBone AS 8524 25 1 4 AUCEGYPT Autonomous System 15475 24 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 33765 19 3 8 TANZANIA TELECOMMUNICATIONS C 7460 17 3 5 LIA Internet Access 12258 17 3 11 Vodacom Internet Company Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1105 887 Time Warner Telecom 721 1115 803 DLA Systems Automation Center 18566 806 799 Covad Communications 4134 906 721 CHINANET-BACKBONE 9583 735 660 Sify Limited 27364 565 547 Armstrong Cable Services 4755 590 467 Videsh Sanchar Nigam Ltd. Aut 5668 487 462 CenturyTel Internet Holdings, 22773 483 462 Cox Communications, Inc. 6197 905 444 BellSouth Network Solutions, 7725 449 434 MediaOne 7545 495 423 TPG Internet Pty Ltd 3602 513 416 Sprint Canada, Inc. 6467 419 384 E.Spire Communications, Inc. 17676 431 358 Softbank BB Corp. 6140 402 329 ImpSat 9929 360 314 China Netcom Corp. 4766 590 311 Korea Telecom (KIX) 9443 370 294 Primus Telecommunications 6478 415 289 AT&T Worldnet Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65050 PRIVATE 168.96.148.0/24 6140 ImpSat 65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma 64512 PRIVATE 200.61.32.0/23 11664 Keytech SA 64512 PRIVATE 200.61.48.0/20 11664 Keytech SA 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 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 172.1.0.0/16 12956 Telefonica Data Autonomous Sy 172.2.0.0/16 12956 Telefonica Data Autonomous Sy 172.3.0.0/16 12956 Telefonica Data Autonomous Sy 172.4.0.0/16 12956 Telefonica Data Autonomous Sy 172.5.0.0/16 12956 Telefonica Data Autonomous Sy 172.6.0.0/16 12956 Telefonica Data Autonomous Sy 172.7.0.0/16 12956 Telefonica Data Autonomous Sy 172.8.0.0/16 12956 Telefonica Data Autonomous Sy 172.9.0.0/16 12956 Telefonica Data Autonomous Sy 172.10.0.0/16 12956 Telefonica Data Autonomous Sy 172.11.0.0/16 12956 Telefonica Data Autonomous Sy 172.12.0.0/16 12956 Telefonica Data Autonomous Sy 172.13.0.0/16 12956 Telefonica Data Autonomous Sy 172.14.0.0/16 12956 Telefonica Data Autonomous Sy 172.15.0.0/16 12956 Telefonica Data Autonomous Sy 172.32.0.0/24 7011 Citizens Utilities 172.50.0.0/16 12956 Telefonica Data Autonomous Sy 172.51.0.0/16 12956 Telefonica Data Autonomous Sy 172.52.0.0/16 12956 Telefonica Data Autonomous Sy 172.74.0.0/16 12956 Telefonica Data Autonomous Sy 172.122.28.0/24 210 Utah Education Network 192.43.230.0/24 7575 Australian Academic and Rease 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 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.172.0.0/19 721 DLA Systems Automation Center 192.200.100.0/24 7018 AT&T WorldNet Services Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:3 /10:8 /11:15 /12:70 /13:156 /14:306 /15:599 /16:8407 /17:2550 /18:4377 /19:10319 /20:11111 /21:9001 /22:12466 /23:13410 /24:88429 /25:279 /26:242 /27:136 /28:67 /29:38 /30:71 /31:0 /32:30 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 790 806 Covad Communications 6197 744 905 BellSouth Network Solutions, 7018 677 1489 AT&T WorldNet Services 2386 603 853 AT&T Data Communications Serv 27364 556 565 Armstrong Cable Services 9583 551 735 Sify Limited 4323 523 1105 Time Warner Telecom 7725 422 449 MediaOne 4766 407 590 Korea Telecom (KIX) 5668 402 487 CenturyTel Internet Holdings, 1239 378 899 Sprint 702 368 596 UUNET - Commercial IP service 6198 342 465 BellSouth Network Solutions, 10036 317 317 C&M Communication Co. Ltd. 6467 300 419 E.Spire Communications, Inc. 6517 300 323 Yipes Communications, Inc. 7011 298 348 Citizens Utilities 9929 281 360 China Netcom Corp. 11456 278 319 Carolina Online, Inc. 15270 259 279 PaeTec.net -a division of Pae Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 8:13 12:1531 13:1 15:9 16:2 17:3 18:4 20:4 24:1123 30:2 32:69 33:4 38:114 40:53 44:3 47:2 52:4 55:2 56:3 57:21 58:47 59:32 60:33 61:796 62:609 63:1881 64:2717 65:2072 66:2850 67:577 68:528 69:1014 70:105 71:17 72:175 80:570 81:549 82:404 83:263 84:178 85:194 86:9 128:152 129:160 130:82 131:277 132:35 133:1 134:148 135:40 136:189 137:65 138:169 139:57 140:191 141:105 142:153 143:142 144:182 145:33 146:281 147:108 148:291 149:165 150:97 151:65 152:106 153:86 154:5 155:144 156:78 157:92 158:161 159:174 160:77 161:65 162:203 163:82 164:207 165:175 166:154 167:233 168:423 169:140 170:315 171:8 172:2 192:5705 193:3199 194:2361 195:1558 196:655 198:3935 199:3277 200:3907 201:128 202:5554 203:6178 204:3822 205:2016 206:2476 207:2786 208:2064 209:3294 210:1689 211:829 212:1142 213:1281 214:266 215:31 216:3439 217:1133 218:198 219:105 220:377 221:214 222:102 End of report

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The Cidr Report
by cidr-report＠potaroo.net 13 May '05

13 May '05

This report has been generated at Fri May 13 21:44:55 2005 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 06-05-05 157716 108341 07-05-05 157747 108272 08-05-05 157845 108355 09-05-05 157874 107939 10-05-05 157991 107998 11-05-05 158104 108225 12-05-05 158263 108345 13-05-05 158437 108294 AS Summary 19548 Number of ASes in routing system 8018 Number of ASes announcing only one prefix 1475 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 90463488 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - 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'). --- 13May05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 158472 108345 50127 31.6% All ASes AS4323 1099 221 878 79.9% TWTC - Time Warner Telecom AS18566 806 8 798 99.0% COVAD - Covad Communications AS4134 894 220 674 75.4% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1113 562 551 49.5% DLA-ASNBLOCK-AS - DoD Network Information Center AS27364 565 22 543 96.1% ACS-INTERNET - Armstrong Cable Services AS7018 1475 941 534 36.2% ATT-INTERNET4 - AT&T WorldNet Services AS22773 483 23 460 95.2% CCINET-2 - Cox Communications Inc. AS7725 449 50 399 88.9% CCH-AS7 - Comcast Cable Communications Holdings, Inc AS6197 901 513 388 43.1% BATI-ATL - BellSouth Network Solutions, Inc AS3602 513 142 371 72.3% SPRINT-CA-AS - Sprint Canada Inc. AS17676 431 78 353 81.9% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 349 46 303 86.8% CNCNET-CN China Netcom Corp. AS4766 575 280 295 51.3% KIXS-AS-KR Korea Telecom AS6478 415 126 289 69.6% ATT-INTERNET3 - AT&T WorldNet Services AS6140 401 138 263 65.6% IMPSAT-USA - ImpSat AS14654 266 6 260 97.7% WAYPORT - Wayport AS9443 374 123 251 67.1% INTERNETPRIMUS-AS-AP Primus Telecommunications AS1239 893 650 243 27.2% SPRINTLINK - Sprint AS7545 493 252 241 48.9% TPG-INTERNET-AP TPG Internet Pty Ltd AS23126 254 18 236 92.9% KMCTELCOM-DIA - KMC Telecom, Inc. AS15270 272 38 234 86.0% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS9583 733 501 232 31.7% SIFY-AS-IN Sify Limited AS6198 464 236 228 49.1% BATI-MIA - BellSouth Network Solutions, Inc AS5668 487 262 225 46.2% AS-5668 - CenturyTel Internet Holdings, Inc. AS2386 851 633 218 25.6% INS-AS - AT&T Data Communications Services AS9498 297 79 218 73.4% BBIL-AP BHARTI BT INTERNET LTD. AS11456 318 109 209 65.7% NUVOX - NuVox Communications, Inc. AS6167 264 67 197 74.6% CELLCO-PART - Cellco Partnership AS6517 321 128 193 60.1% YIPESCOM - Yipes Communications, Inc. AS812 209 21 188 90.0% ROGERS-CABLE - Rogers Cable Inc. Total 16965 6493 10472 61.7% Top 30 total Possible Bogus Routes 172.1.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.2.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.3.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.4.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.5.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.6.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.7.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.8.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.9.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.10.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.11.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.12.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.13.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.14.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.15.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.32.0.0/24 AS7011 CITLINK - Citizens Utilities 172.50.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.51.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.52.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.74.0.0/16 AS12956 TELEFONICA Telefonica Backbone Autonomous System 172.122.28.0/24 AS210 WEST-NET-WEST - Utah Education Network 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 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 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 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.3.162.0/24 AS6083 AFRINIC African Network Information Center 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc. 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MBNET-AS - Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - 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 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - 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 199.114.156.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 202.86.252.0/22 AS4748 RESOLINK-AS Resources Linke Network Limited 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 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. 204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 208.53.224.0/19 AS13576 SDNET - SOUTH DAKOTA NETWORK 208.138.48.0/20 AS7955 SOURCENET - SourceNet Corporation 209.134.0.0/18 AS8082 WORLDSITE - Worldsite Networks 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 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. 209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL - Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.82.160.0/20 AS13823 CALYX-USA - Calyx Internet Access Corp. 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications 216.194.112.0/20 AS29738 UVNET-ASN1 - UVNET 216.194.113.0/24 AS29738 UVNET-ASN1 - UVNET 216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet 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 swinog(a)swinog.ch

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Weekly Routing Table Report
by Routing Table Analysis 06 May '05

06 May '05

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 If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 07 May, 2005 Analysis Summary ---------------- BGP routing table entries examined: 161467 Prefixes after maximum aggregation: 93967 Unique aggregates announced to Internet: 77882 Total ASes present in the Internet Routing Table: 19588 Origin-only ASes present in the Internet Routing Table: 17034 Origin ASes announcing only one prefix: 7990 Transit ASes present in the Internet Routing Table: 2554 Transit-only ASes present in the Internet Routing Table: 70 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 29 Prefixes from unregistered ASNs in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 15 Number of addresses announced to Internet: 1421415488 Equivalent to 84 /8s, 185 /16s and 20 /24s Percentage of available address space announced: 38.3 Percentage of allocated address space announced: 60.2 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 75659 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33075 Total APNIC prefixes after maximum aggregation: 15569 Prefixes being announced from the APNIC address blocks: 30999 Unique aggregates announced from the APNIC address blocks: 15721 APNIC Region origin ASes present in the Internet Routing Table: 2262 APNIC Region origin ASes announcing only one prefix: 660 APNIC Region transit ASes present in the Internet Routing Table: 341 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 182688640 Equivalent to 10 /8s, 227 /16s and 155 /24s Percentage of available APNIC address space announced: 67.8 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575 APNIC Address Blocks 58/7, 60/7, 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: 87571 Total ARIN prefixes after maximum aggregation: 53451 Prefixes being announced from the ARIN address blocks: 68378 Unique aggregates announced from the ARIN address blocks: 25130 ARIN Region origin ASes present in the Internet Routing Table: 9913 ARIN Region origin ASes announcing only one prefix: 3615 ARIN Region transit ASes present in the Internet Routing Table: 939 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 247708160 Equivalent to 14 /8s, 195 /16s and 186 /24s Percentage of available ARIN address space announced: 70.3 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 30610 Total RIPE prefixes after maximum aggregation: 21161 Prefixes being announced from the RIPE address blocks: 27670 Unique aggregates announced from the RIPE address blocks: 18469 RIPE Region origin ASes present in the Internet Routing Table: 6612 RIPE Region origin ASes announcing only one prefix: 3488 RIPE Region transit ASes present in the Internet Routing Table: 1113 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 29 Number of RIPE addresses announced to Internet: 203457472 Equivalent to 12 /8s, 32 /16s and 131 /24s Percentage of available RIPE address space announced: 71.3 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 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 8644 Total LACNIC prefixes after maximum aggregation: 3024 Prefixes being announced from the LACNIC address blocks: 7061 Unique aggregates announced from the LACNIC address blocks: 4080 LACNIC Region origin ASes present in the Internet Routing Table: 612 LACNIC Region origin ASes announcing only one prefix: 192 LACNIC Region transit ASes present in the Internet Routing Table: 114 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 18604800 Equivalent to 1 /8s, 27 /16s and 227 /24s Percentage of available LACNIC address space announced: 55.4 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1547 Total AfriNIC prefixes after maximum aggregation: 762 Prefixes being announced from the AfriNIC address blocks: 945 Unique aggregates announced from the AfriNIC address blocks: 749 AfriNIC Region origin ASes present in the Internet Routing Table: 123 AfriNIC Region origin ASes announcing only one prefix: 35 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2228736 Equivalent to 0 /8s, 34 /16s and 2 /24s Percentage of available AfriNIC address space announced: 6.6 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 897 5035 183 CHINANET-BACKBONE 1221 772 1188 546 Telstra Pty Ltd 9583 732 53 75 Sify Limited 4755 593 243 124 Videsh Sanchar Nigam Ltd. Aut 4766 587 3412 276 Korea Telecom (KIX) 7545 495 86 72 TPG Internet Pty Ltd 17676 431 6509 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 361 197 46 China Netcom Corp. 2907 345 1838 319 SINET Japan 17557 318 23 153 Pakistan Telecom 10036 311 28 282 C&M Communication Co. Ltd. 4808 309 251 169 CNCGROUP IP network: China169 7474 298 268 208 SingTel Optus Pty Ltd 9498 293 83 59 BHARTI BT INTERNET LTD. 4802 279 47 164 Wantree Development 703 257 279 212 UUNET - Commercial IP service 2764 252 238 197 AAPT Limited 17974 249 65 14 PT TELEKOMUNIKASI INDONESIA 9800 238 386 69 CHINA UNICOM ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1482 6502 961 AT&T WorldNet Services 174 1182 5612 1012 Cogent Communications 721 1117 21763 313 DLA Systems Automation Center 4323 1102 664 221 Time Warner Telecom 701 1011 8250 861 UUNET Technologies, Inc. 1239 906 2869 656 Sprint 6197 903 370 454 BellSouth Network Solutions, 2386 850 532 630 AT&T Data Communications Serv 18566 803 224 7 Covad Communications 209 652 3456 493 Qwest 20115 595 504 310 Charter Communications 3356 586 10836 441 Level 3 Communications, LLC 3561 543 2360 416 Savvis 27364 539 43 18 Armstrong Cable Services 852 529 1095 390 Telus Advanced Communications 3602 508 122 95 Sprint Canada, Inc. 5668 486 115 25 CenturyTel Internet Holdings, 22773 483 1188 21 Cox Communications, Inc. 6198 465 382 219 BellSouth Network Solutions, 7132 445 8798 379 SBC Internet Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 593 2003 485 UUNET - Commercial IP service 3320 304 3249 238 Deutsche Telekom AG 3301 296 1116 286 TeliaNet Sweden 8220 272 468 266 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 491 227 Song Networks 8708 226 252 210 Romania Data Systems S.A. 1257 200 728 176 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 3269 164 1488 69 TELECOM ITALIA 6746 164 47 143 Dynamic Network Technologies, 8866 162 21 12 Bulgarian Telecommunication C 719 159 340 101 LANLINK autonomous system 3300 151 184 84 AUCS Communications Services 5400 144 284 128 BT Ignite European Backbone 25186 139 137 97 France Telecom Transpac's Tra 6830 137 513 27 UPC Distribution Services 2856 129 2305 116 BTnet UK Regional network 9051 128 8 34 INCONET Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 374 598 148 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 224 99 54 Servicios Alestra S.A de C.V 6147 197 102 20 Telefonica Del Peru 11664 155 19 22 Keytech SA 7303 148 68 21 Telecom Argentina Stet-France 14117 135 8 4 Telefonica del Sur S.A. 22047 132 96 6 VTR PUNTO NET S.A. 6505 130 90 87 Global One Communicaoes Ltda 13999 112 52 9 Mega Cable S.A. de C.V. 11556 111 55 7 Cable-Wireless Panama 18822 105 7 15 TELEFONICA MANQUEHUE 6503 102 146 73 AVANTEL, S.A. 10481 101 40 7 Prima S.A. 19169 99 6 16 Telconet 19632 93 14 5 Metropolis Intercom S.A. 22927 92 65 22 TELEFONICA DE ARGENTINA 21826 90 12 18 INTERCABLE 11311 89 8 18 Sinectis S.A. 23216 89 24 23 RAMtelecom Telecomunicaciones AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 270 637 225 The Internet Solution 5536 119 15 17 Internet Egypt Network 2018 91 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 75 267 69 The Internetworking Company o 8452 64 20 5 TEDATA 24835 62 34 6 RAYA Telecom - Egypt 9129 45 3 3 UUNET Kenya 12455 38 6 3 Jambonet Autonomous system 5713 35 141 28 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 8524 24 1 4 AUCEGYPT Autonomous System 15475 24 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 33765 19 3 8 TANZANIA TELECOMMUNICATIONS C 7460 18 3 5 LIA Internet Access 2609 17 26 3 Tunisia BackBone AS 12258 17 3 11 Vodacom Internet Company 21491 17 1 3 UTL On-line is RF broadband I Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1102 881 Time Warner Telecom 721 1117 804 DLA Systems Automation Center 18566 803 796 Covad Communications 4134 897 714 CHINANET-BACKBONE 9583 732 657 Sify Limited 27364 539 521 Armstrong Cable Services 4755 593 469 Videsh Sanchar Nigam Ltd. Aut 22773 483 462 Cox Communications, Inc. 5668 486 461 CenturyTel Internet Holdings, 6197 903 449 BellSouth Network Solutions, 7545 495 423 TPG Internet Pty Ltd 3602 508 413 Sprint Canada, Inc. 7725 415 400 MediaOne 6467 429 394 E.Spire Communications, Inc. 17676 431 358 Softbank BB Corp. 6140 398 326 ImpSat 9929 361 315 China Netcom Corp. 4766 587 311 Korea Telecom (KIX) 9443 370 294 Primus Telecommunications 6478 416 293 AT&T Worldnet Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65424 PRIVATE 66.225.194.0/24 23352 Server Central Netwo 65424 PRIVATE 66.225.194.0/23 23352 Server Central Netwo 65424 PRIVATE 66.225.195.0/24 23352 Server Central Netwo 65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 1.0.0.0/8 705 UUNET Technologies, Inc. 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 172.32.0.0/24 7011 Citizens Utilities 172.122.28.0/24 210 Utah Education Network 192.43.230.0/24 7575 Australian Academic and Rease 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 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.172.0.0/19 721 DLA Systems Automation Center 192.200.100.0/24 7018 AT&T WorldNet Services Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:3 /10:8 /11:15 /12:69 /13:154 /14:308 /15:585 /16:8376 /17:2537 /18:4368 /19:10270 /20:11102 /21:8989 /22:12398 /23:13374 /24:88016 /25:275 /26:246 /27:138 /28:76 /29:38 /30:70 /31:0 /32:32 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 787 803 Covad Communications 6197 742 903 BellSouth Network Solutions, 7018 672 1482 AT&T WorldNet Services 2386 603 850 AT&T Data Communications Serv 9583 548 732 Sify Limited 27364 528 539 Armstrong Cable Services 4323 517 1102 Time Warner Telecom 4766 405 587 Korea Telecom (KIX) 5668 403 486 CenturyTel Internet Holdings, 7725 388 415 MediaOne 1239 379 906 Sprint 702 365 593 UUNET - Commercial IP service 6198 342 465 BellSouth Network Solutions, 10036 311 311 C&M Communication Co. Ltd. 6467 307 429 E.Spire Communications, Inc. 6517 298 321 Yipes Communications, Inc. 7011 297 347 Citizens Utilities 9929 282 361 China Netcom Corp. 11456 278 320 Carolina Online, Inc. 15270 259 279 PaeTec.net -a division of Pae Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:12 12:1531 13:1 15:9 16:2 17:3 18:4 20:4 24:1072 30:2 32:69 33:4 38:113 40:53 44:3 47:2 52:4 55:2 56:3 57:23 58:42 59:28 60:22 61:788 62:604 63:1871 64:2685 65:2068 66:2816 67:577 68:527 69:1007 70:100 71:6 72:175 80:564 81:546 82:392 83:257 84:168 85:192 86:8 128:145 129:158 130:85 131:279 132:34 133:1 134:147 135:40 136:185 137:65 138:171 139:55 140:192 141:106 142:148 143:133 144:168 145:32 146:280 147:105 148:294 149:169 150:97 151:65 152:106 153:86 154:5 155:141 156:77 157:92 158:161 159:175 160:77 161:64 162:203 163:82 164:207 165:175 166:154 167:233 168:421 169:139 170:311 171:8 172:2 192:5702 193:3174 194:2331 195:1553 196:650 198:3914 199:3267 200:3916 201:124 202:5556 203:6172 204:3810 205:2016 206:2473 207:2758 208:2050 209:3288 210:1690 211:830 212:1142 213:1281 214:265 215:33 216:3463 217:1133 218:198 219:106 220:380 221:209 222:96 End of report

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The Cidr Report
by cidr-report＠potaroo.net 06 May '05

06 May '05

This report has been generated at Fri May 6 21:45:27 2005 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 29-04-05 157191 107946 30-04-05 157335 107844 01-05-05 157196 107996 02-05-05 157356 108023 03-05-05 157392 108044 04-05-05 157505 108133 05-05-05 157530 108201 06-05-05 157716 108242 AS Summary 19490 Number of ASes in routing system 8002 Number of ASes announcing only one prefix 1465 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 90497024 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - 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'). --- 06May05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 157656 108247 49409 31.3% All ASes AS4323 1099 224 875 79.6% TWTC - Time Warner Telecom AS18566 803 8 795 99.0% COVAD - Covad Communications AS4134 893 220 673 75.4% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1116 564 552 49.5% DLA-ASNBLOCK-AS - DoD Network Information Center AS7018 1465 946 519 35.4% ATT-INTERNET4 - AT&T WorldNet Services AS27364 539 22 517 95.9% ACS-INTERNET - Armstrong Cable Services AS22773 483 23 460 95.2% CCINET-2 - Cox Communications Inc. AS6197 900 506 394 43.8% BATI-ATL - BellSouth Network Solutions, Inc AS3602 508 145 363 71.5% SPRINT-CA-AS - Sprint Canada Inc. AS17676 431 78 353 81.9% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 350 46 304 86.9% CNCNET-CN China Netcom Corp. AS4766 575 279 296 51.5% KIXS-AS-KR Korea Telecom AS6478 416 123 293 70.4% ATT-INTERNET3 - AT&T WorldNet Services AS9583 731 459 272 37.2% SIFY-AS-IN Sify Limited AS6140 398 134 264 66.3% IMPSAT-USA - ImpSat AS14654 264 6 258 97.7% WAYPORT - Wayport AS9443 374 123 251 67.1% INTERNETPRIMUS-AS-AP Primus Telecommunications AS1239 899 654 245 27.3% SPRINTLINK - Sprint AS7545 495 250 245 49.5% TPG-INTERNET-AP TPG Internet Pty Ltd AS15270 272 37 235 86.4% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS23126 254 19 235 92.5% KMCTELCOM-DIA - KMC Telecom, Inc. AS6198 464 236 228 49.1% BATI-MIA - BellSouth Network Solutions, Inc AS7725 415 189 226 54.5% CCH-AS7 - Comcast Cable Communications Holdings, Inc AS5668 488 264 224 45.9% AS-5668 - CenturyTel Internet Holdings, Inc. AS2386 850 632 218 25.6% INS-AS - AT&T Data Communications Services AS9498 295 79 216 73.2% BBIL-AP BHARTI BT INTERNET LTD. AS11456 318 110 208 65.4% NUVOX - NuVox Communications, Inc. AS6167 264 67 197 74.6% CELLCO-PART - Cellco Partnership AS6517 318 128 190 59.7% YIPESCOM - Yipes Communications, Inc. AS812 201 21 180 89.6% ROGERS-CABLE - Rogers Cable Inc. Total 16878 6592 10286 60.9% 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 64.9.224.0/19 AS209 ASN-QWEST - Qwest 64.13.0.0/22 AS209 ASN-QWEST - Qwest 64.13.128.0/18 AS10565 MEER-AS - meer.net 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 64.127.0.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.148.0.0/18 AS7132 SBIS-AS - SBC Internet Services 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.164.232.0/24 AS6197 BATI-ATL - BellSouth Network Solutions, Inc 67.47.0.0/17 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.0.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.64.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 69.183.64.0/18 AS7132 SBIS-AS - SBC Internet Services 69.183.128.0/17 AS7132 SBIS-AS - SBC Internet Services 172.32.0.0/24 AS7011 CITLINK - Citizens Utilities 172.122.28.0/24 AS210 WEST-NET-WEST - Utah Education Network 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 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 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 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 196.1.144.0/20 AS25818 AFRINIC African Network Information Center 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.3.162.0/24 AS6083 AFRINIC African Network Information Center 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc. 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MBNET-AS - Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - 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 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - 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 199.114.156.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 200.125.96.0/21 AS27747 Telecentro S.A. 200.125.104.0/21 AS27747 Telecentro S.A. 200.125.112.0/21 AS27747 Telecentro S.A. 200.125.120.0/21 AS27747 Telecentro S.A. 202.59.2.0/23 AS24003 JUBL-MAIN-AS-IN JUBILANT ORGANOSYS LTD., INDIA, LEADING CHEMICAL MANUFACTURER 202.86.252.0/22 AS4748 RESOLINK-AS Resources Linke Network Limited 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.13.184.0/21 AS35967 LAVATRADING-CITI01 - Lava Trading, INC. 204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 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. 204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 208.53.224.0/19 AS13576 SDNET - SOUTH DAKOTA NETWORK 208.138.48.0/20 AS7955 SOURCENET - SourceNet Corporation 209.11.240.0/20 AS35908 VPLSNET - VPLS Inc. 209.134.0.0/18 AS8082 WORLDSITE - Worldsite Networks 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 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. 209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL - Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.82.160.0/20 AS13823 CALYX-USA - Calyx Internet Access Corp. 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications 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 swinog(a)swinog.ch

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Updated agenda for routing-wg
by João Damas 04 May '05

04 May '05

Thursday, May 5, 9:00-10:30, Plenary room - Administrativia: Minutes of previous meeting, Appointment of scribe, review of open actions, attendee list - Discussion space for the topics covered in talks: Open floor, seeking input and discussion on: - Traffic engineering and the effect of business practices on the routing table - Route flap damping today - DDoS Detection & Mitigation Experience using Arbor/Peakflow & Cisco/Guard - Watch your Flows with NfSen and NFDUMP - Traffic Anomaly Detection, DDoS Mitigation, Coordinated Attack Fingerprinting - Thoughts about recommendations for BGP filters for IPv6 Presentation: - Active BGP probing. Lorenzo Colitti, RIPE NCC and University of Rome Tre Introduction/abstract: I and my colleagues at Roma Tre University have developed techniques that ISPs can use to find out how their prefixes could be announced in case of network faults and how other ASes treat their prefixes. Our techniques are based on active BGP probing and announcing large AS-sets, and have been successfully tested in the IPv6 Internet. Our subsequent announcement of tests on the IPv4 network caused a bit of a stir on nanog [1]. The tests were cancelled and we said we would first come out with a document explaining what we do and how we do it and then continue the discussion. A technical report is almost ready and we would like to get the discussion going.

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Weekly Routing Table Report
by Routing Table Analysis 29 Apr '05

29 Apr '05

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 If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 30 Apr, 2005 Analysis Summary ---------------- BGP routing table entries examined: 160965 Prefixes after maximum aggregation: 93728 Unique aggregates announced to Internet: 77542 Total ASes present in the Internet Routing Table: 19534 Origin-only ASes present in the Internet Routing Table: 16995 Origin ASes announcing only one prefix: 7966 Transit ASes present in the Internet Routing Table: 2539 Transit-only ASes present in the Internet Routing Table: 70 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 25 Prefixes from unregistered ASNs in the Routing Table: 13 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1402418240 Equivalent to 83 /8s, 151 /16s and 52 /24s Percentage of available address space announced: 37.8 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 75387 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32925 Total APNIC prefixes after maximum aggregation: 15505 Prefixes being announced from the APNIC address blocks: 30870 Unique aggregates announced from the APNIC address blocks: 15608 APNIC Region origin ASes present in the Internet Routing Table: 2252 APNIC Region origin ASes announcing only one prefix: 660 APNIC Region transit ASes present in the Internet Routing Table: 342 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 181904768 Equivalent to 10 /8s, 215 /16s and 165 /24s Percentage of available APNIC address space announced: 67.5 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575 APNIC Address Blocks 58/7, 60/7, 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: 87447 Total ARIN prefixes after maximum aggregation: 53329 Prefixes being announced from the ARIN address blocks: 68203 Unique aggregates announced from the ARIN address blocks: 25071 ARIN Region origin ASes present in the Internet Routing Table: 9901 ARIN Region origin ASes announcing only one prefix: 3600 ARIN Region transit ASes present in the Internet Routing Table: 934 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 247404544 Equivalent to 14 /8s, 191 /16s and 24 /24s Percentage of available ARIN address space announced: 70.2 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 30604 Total RIPE prefixes after maximum aggregation: 21151 Prefixes being announced from the RIPE address blocks: 27631 Unique aggregates announced from the RIPE address blocks: 18416 RIPE Region origin ASes present in the Internet Routing Table: 6602 RIPE Region origin ASes announcing only one prefix: 3486 RIPE Region transit ASes present in the Internet Routing Table: 1104 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 202156992 Equivalent to 12 /8s, 12 /16s and 171 /24s Percentage of available RIPE address space announced: 70.9 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 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 8530 Total LACNIC prefixes after maximum aggregation: 3037 Prefixes being announced from the LACNIC address blocks: 6932 Unique aggregates announced from the LACNIC address blocks: 4046 LACNIC Region origin ASes present in the Internet Routing Table: 612 LACNIC Region origin ASes announcing only one prefix: 193 LACNIC Region transit ASes present in the Internet Routing Table: 111 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18459136 Equivalent to 1 /8s, 25 /16s and 170 /24s Percentage of available LACNIC address space announced: 55.0 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1441 Total AfriNIC prefixes after maximum aggregation: 706 Prefixes being announced from the AfriNIC address blocks: 943 Unique aggregates announced from the AfriNIC address blocks: 749 AfriNIC Region origin ASes present in the Internet Routing Table: 100 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2224640 Equivalent to 0 /8s, 33 /16s and 242 /24s Percentage of available AfriNIC address space announced: 6.6 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 898 5035 183 CHINANET-BACKBONE 1221 773 1192 550 Telstra Pty Ltd 9583 729 53 71 Sify Limited 4766 585 3413 276 Korea Telecom (KIX) 4755 581 245 126 Videsh Sanchar Nigam Ltd. Aut 7545 492 86 71 TPG Internet Pty Ltd 17676 431 6509 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 361 197 46 China Netcom Corp. 2907 345 1838 319 SINET Japan 17557 315 26 149 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 309 251 169 CNCGROUP IP network: China169 7474 299 268 208 SingTel Optus Pty Ltd 9498 287 82 55 BHARTI BT INTERNET LTD. 4802 279 47 164 Wantree Development 2764 258 238 197 AAPT Limited 703 256 279 211 UUNET - Commercial IP service 17974 244 65 14 PT TELEKOMUNIKASI INDONESIA 9800 242 386 69 CHINA UNICOM ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1488 6500 957 AT&T WorldNet Services 174 1177 5607 1008 Cogent Communications 721 1116 21763 314 DLA Systems Automation Center 4323 1108 665 225 Time Warner Telecom 701 1007 8282 857 UUNET Technologies, Inc. 1239 910 2874 659 Sprint 6197 895 381 415 BellSouth Network Solutions, 2386 847 532 628 AT&T Data Communications Serv 18566 801 224 7 Covad Communications 209 653 3460 494 Qwest 20115 609 505 307 Charter Communications 3356 582 10836 437 Level 3 Communications, LLC 3561 541 2365 414 Savvis 27364 539 43 18 Armstrong Cable Services 852 530 1095 393 Telus Advanced Communications 3602 506 122 94 Sprint Canada, Inc. 5668 487 115 25 CenturyTel Internet Holdings, 22773 481 1188 21 Cox Communications, Inc. 6198 469 542 202 BellSouth Network Solutions, 7132 443 8782 380 SBC Internet Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 595 2003 487 UUNET - Commercial IP service 3320 302 2993 236 Deutsche Telekom AG 3301 297 1116 287 TeliaNet Sweden 8220 274 469 268 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 233 491 228 Song Networks 8708 228 251 209 Romania Data Systems S.A. 1257 199 727 175 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 3269 167 1472 73 TELECOM ITALIA 6746 164 47 143 Dynamic Network Technologies, 8866 162 21 12 Bulgarian Telecommunication C 719 159 340 101 LANLINK autonomous system 3300 151 184 84 AUCS Communications Services 5400 144 284 128 BT Ignite European Backbone 25186 139 137 97 France Telecom Transpac's Tra 6830 137 513 27 UPC Distribution Services 2856 129 2305 116 BTnet UK Regional network 9051 128 8 34 INCONET Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 373 598 147 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 223 99 54 Servicios Alestra S.A de C.V 6147 197 102 20 Telefonica Del Peru 11664 155 19 22 Keytech SA 7303 147 68 21 Telecom Argentina Stet-France 14117 135 8 4 Telefonica del Sur S.A. 6505 130 90 87 Global One Communicaoes Ltda 22047 124 96 6 VTR PUNTO NET S.A. 11556 110 55 6 Cable-Wireless Panama 13999 110 52 9 Mega Cable S.A. de C.V. 18822 105 7 15 TELEFONICA MANQUEHUE 6503 104 146 74 AVANTEL, S.A. 10481 101 40 7 Prima S.A. 19169 89 6 26 Telconet 21826 89 12 18 INTERCABLE 23216 89 24 22 RAMtelecom Telecomunicaciones 11311 85 8 21 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 19632 81 14 7 Metropolis Intercom S.A. AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 270 637 225 The Internet Solution 5536 119 15 17 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 75 267 69 The Internetworking Company o 8452 64 20 5 TEDATA 24835 60 34 6 RAYA Telecom - Egypt 9129 44 3 3 UUNET Kenya 12455 42 6 4 Jambonet Autonomous system 5713 35 141 28 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 8524 25 1 4 AUCEGYPT Autonomous System 15475 24 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 7460 18 3 5 LIA Internet Access 2609 17 26 3 Tunisia BackBone AS 12258 17 3 11 Vodacom Internet Company 21280 17 2 3 Swift Global Kenya Ltd.Is an 15808 16 1 1 Communication Solutions Ltd i Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65530 * 4323 1108 883 Time Warner Telecom 721 1116 802 DLA Systems Automation Center 18566 801 794 Covad Communications 4134 898 715 CHINANET-BACKBONE 9583 729 658 Sify Limited 27364 539 521 Armstrong Cable Services 6197 895 480 BellSouth Network Solutions, 5668 487 462 CenturyTel Internet Holdings, 22773 481 460 Cox Communications, Inc. 4755 581 455 Videsh Sanchar Nigam Ltd. Aut 7545 492 421 TPG Internet Pty Ltd 3602 506 412 Sprint Canada, Inc. 6467 434 399 E.Spire Communications, Inc. 17676 431 358 Softbank BB Corp. 6140 399 327 ImpSat 9929 361 315 China Netcom Corp. 4766 585 309 Korea Telecom (KIX) 20115 609 302 Charter Communications 9443 370 294 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM 65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 65529 PRIVATE 216.152.237.0/24 14697 VDot.Net 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 172.32.0.0/24 7011 Citizens Utilities 172.122.28.0/24 210 Utah Education Network 192.43.230.0/24 7575 Australian Academic and Rease 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 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.172.0.0/19 721 DLA Systems Automation Center 192.200.100.0/24 7018 AT&T WorldNet Services Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:8 /11:15 /12:68 /13:153 /14:307 /15:583 /16:8373 /17:2530 /18:4362 /19:10244 /20:11065 /21:8919 /22:12310 /23:13273 /24:87830 /25:280 /26:269 /27:142 /28:75 /29:38 /30:70 /31:0 /32:29 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 785 801 Covad Communications 6197 734 895 BellSouth Network Solutions, 7018 673 1488 AT&T WorldNet Services 2386 601 847 AT&T Data Communications Serv 9583 545 729 Sify Limited 27364 528 539 Armstrong Cable Services 4323 520 1108 Time Warner Telecom 5668 404 487 CenturyTel Internet Holdings, 4766 402 585 Korea Telecom (KIX) 1239 382 910 Sprint 702 367 595 UUNET - Commercial IP service 6198 339 469 BellSouth Network Solutions, 6467 313 434 E.Spire Communications, Inc. 10036 313 313 C&M Communication Co. Ltd. 6517 296 319 Yipes Communications, Inc. 7011 296 346 Citizens Utilities 9929 282 361 China Netcom Corp. 11456 276 318 Carolina Online, Inc. 15270 258 278 PaeTec.net -a division of Pae 174 249 1177 Cogent Communications Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:12 12:1529 13:1 15:9 16:2 17:3 18:4 20:4 24:978 30:2 32:69 33:4 38:109 40:53 44:3 47:2 52:4 55:2 56:3 57:24 58:42 59:28 60:22 61:784 62:595 63:1878 64:2687 65:2066 66:2795 67:563 68:521 69:994 70:94 71:6 72:165 80:555 81:546 82:396 83:244 84:162 85:180 86:6 128:148 129:158 130:84 131:279 132:36 133:1 134:148 135:40 136:191 137:65 138:171 139:55 140:191 141:106 142:142 143:134 144:167 145:33 146:280 147:104 148:296 149:169 150:97 151:65 152:107 153:87 154:5 155:143 156:77 157:92 158:167 159:173 160:77 161:61 162:203 163:83 164:207 165:178 166:155 167:231 168:417 169:140 170:315 171:8 172:2 192:5701 193:3177 194:2341 195:1548 196:652 198:3937 199:3287 200:3851 201:113 202:5528 203:6129 204:3820 205:2015 206:2471 207:2761 208:2060 209:3268 210:1695 211:840 212:1191 213:1284 214:275 215:32 216:3513 217:1139 218:192 219:105 220:373 221:203 222:91 End of report

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