BGP Update Report Interval: 02-Mar-07 -to- 15-Mar-07 (14 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS7015 25174 1.5% 6.2 -- CCCH-AS2 - Comcast Cable Communications Holdings, Inc 2 - AS701 14862 0.9% 15.4 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 3 - AS9583 13600 0.8% 26.6 -- SIFY-AS-IN Sify Limited 4 - AS17557 13135 0.8% 37.0 -- PKTELECOM-AS-AP Pakistan Telecom 5 - AS721 12228 0.7% 27.9 -- DISA-ASNBLK - DoD Network Information Center 6 - AS702 12121 0.7% 17.1 -- AS702 MCI EMEA - Commercial IP service provider in Europe 7 - AS24731 11754 0.7% 279.9 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 8 - AS12654 10761 0.6% 290.8 -- RIPE-NCC-RIS-AS RIPE NCC RIS project 9 - AS20426 9897 0.6% 9897.0 -- PWC-AS - PriceWaterhouseCoopers, LLP 10 - AS8151 9559 0.6% 10.7 -- Uninet S.A. de C.V. 11 - AS24086 9392 0.6% 447.2 -- ETC-AS-VN Electric Telecommunication Company 12 - AS17974 9094 0.5% 39.9 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 13 - AS7545 8892 0.5% 15.1 -- TPG-INTERNET-AP TPG Internet Pty Ltd 14 - AS8452 8315 0.5% 30.2 -- TEDATA TEDATA 15 - AS4323 7309 0.4% 10.6 -- TWTC - Time Warner Telecom, Inc. 16 - AS17645 7290 0.4% 729.0 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 17 - AS33783 7195 0.4% 64.8 -- EEPAD 18 - AS3269 7039 0.4% 32.3 -- ASN-IBSNAZ TELECOM ITALIA 19 - AS3561 6952 0.4% 14.4 -- SAVVIS - Savvis 20 - AS7011 6946 0.4% 8.6 -- FRONTIER-AND-CITIZENS - Frontier Communications, Inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS20426 9897 0.6% 9897.0 -- PWC-AS - PriceWaterhouseCoopers, LLP 2 - AS3043 3397 0.2% 3397.0 -- AMPHIB-AS - Amphibian Media Corporation 3 - AS31594 1335 0.1% 1335.0 -- FORTESS-AS Fortess LLC Network 4 - AS31307 1297 0.1% 1297.0 -- YKYATIRIM YAPI KREDI YATIRIM 5 - AS39066 2257 0.1% 1128.5 -- KREDYTBANKUA-AS Kredyt Bank (Ukraine) AS 6 - AS19580 994 0.1% 994.0 -- ZONETEL - ZONE TELECOM, INC. 7 - AS33797 972 0.1% 972.0 -- APIS-NET-AS Grupa Internetowa 8 - AS34378 865 0.1% 865.0 -- RUG-AS Razguliay-UKRROS Group 9 - AS30707 1703 0.1% 851.5 -- SICOR-US-CA-IRVINE - SICOR Pharmaceuticals, Inc. 10 - AS38151 774 0.1% 774.0 -- ENUM-AS-ID APJII-RD 11 - AS17645 7290 0.4% 729.0 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 12 - AS3217 662 0.0% 662.0 -- SIMBIRSK 13 - AS11828 3096 0.2% 619.2 -- SOINET - State of Illinois/CMS 14 - AS26113 1196 0.1% 598.0 -- TNS-ASN - Triware Networld Systems 15 - AS33188 1108 0.1% 554.0 -- SCS-NETWORK-1 - Sono Corporate Suites 16 - AS15964 466 0.0% 466.0 -- CAMNET-AS 17 - AS21391 1360 0.1% 453.3 -- TDA-AS 18 - AS24086 9392 0.6% 447.2 -- ETC-AS-VN Electric Telecommunication Company 19 - AS22072 440 0.0% 440.0 -- DEFINITYHEALTH - Definity Health 20 - AS14699 4747 0.3% 431.5 -- BTCBCI - Bloomingdale Communications Inc TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 155.201.48.0/21 9897 0.5% AS20426 -- PWC-AS - PriceWaterhouseCoopers, LLP 2 - 209.140.24.0/24 3397 0.2% AS3043 -- AMPHIB-AS - Amphibian Media Corporation 3 - 89.4.128.0/24 3363 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 4 - 89.4.131.0/24 3361 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 5 - 89.4.129.0/24 3299 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 6 - 125.162.94.0/23 2538 0.1% AS17974 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 7 - 192.6.180.0/24 2509 0.1% AS2129 -- HP-EUROPE-AS-TRADE Hewlett-Packard 8 - 58.65.1.0/24 2380 0.1% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 9 - 202.136.182.0/24 2313 0.1% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 10 - 202.136.176.0/24 2313 0.1% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 11 - 163.191.160.0/19 2194 0.1% AS11828 -- SOINET - State of Illinois/CMS 12 - 62.89.226.0/24 1832 0.1% AS20663 -- INAR-VOLOGDA-AS Autonomous System of Vologda 13 - 64.95.193.0/24 1699 0.1% AS30707 -- SICOR-US-CA-IRVINE - SICOR Pharmaceuticals, Inc. 14 - 216.85.83.0/24 1606 0.1% AS4323 -- TWTC - Time Warner Telecom, Inc. 15 - 143.81.0.0/21 1497 0.1% AS6034 -- DDN-ASNBLK - DoD Network Information Center 16 - 213.144.115.0/24 1444 0.1% AS25145 -- TEKNOTEL-AS tr.teknotel AS-Number 17 - 213.144.101.0/24 1423 0.1% AS25145 -- TEKNOTEL-AS tr.teknotel AS-Number 18 - 213.144.100.0/24 1423 0.1% AS25145 -- TEKNOTEL-AS tr.teknotel AS-Number 19 - 213.144.113.0/24 1423 0.1% AS25145 -- TEKNOTEL-AS tr.teknotel AS-Number 20 - 200.226.190.0/23 1415 0.1% AS14571 -- Internet Group do Brasil Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog@merit.edu eof-list@ripe.net apops@apops.net routing-wg@ripe.net afnog@afnog.org ausnog@ausnog.net