BGP Update Report Interval: 13-Aug-07 -to- 13-Sep-07 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS4538 1082826 2.4% 442.5 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS18566 624651 1.4% 610.0 -- COVAD - Covad Communications Co. 3 - AS6197 523715 1.2% 505.0 -- BATI-ATL - BellSouth Network Solutions, Inc 4 - AS7011 489901 1.1% 525.1 -- FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. 5 - AS9498 478635 1.1% 462.4 -- BBIL-AP BHARTI BT INTERNET LTD. 6 - AS4766 452030 1.0% 547.3 -- KIXS-AS-KR Korea Telecom 7 - AS22773 427545 1.0% 552.4 -- CCINET-2 - Cox Communications Inc. 8 - AS9583 396366 0.9% 336.8 -- SIFY-AS-IN Sify Limited 9 - AS852 351536 0.8% 580.1 -- ASN852 - Telus Advanced Communications 10 - AS6198 339944 0.8% 579.1 -- BATI-MIA - BellSouth Network Solutions, Inc 11 - AS16852 235520 0.5% 580.1 -- BROADWING-FOCAL - Broadwing Communications Services, Inc. 12 - AS19916 215335 0.5% 379.1 -- ASTRUM-0001 - OLM LLC 13 - AS4668 198616 0.5% 384.9 -- LGNET-AS-KR LG CNS 14 - AS5668 193416 0.4% 288.7 -- AS-5668 - CenturyTel Internet Holdings, Inc. 15 - AS2907 193012 0.4% 588.5 -- ERX-SINET-AS National Center for Science Information Systems 16 - AS4323 192828 0.4% 141.8 -- TWTC - Time Warner Telecom, Inc. 17 - AS9929 191522 0.4% 521.9 -- CNCNET-CN China Netcom Corp. 18 - AS174 189135 0.4% 189.9 -- COGENT Cogent/PSI 19 - AS4755 186842 0.4% 131.6 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 20 - AS855 173152 0.4% 299.6 -- CANET-ASN-4 - Bell Aliant TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS26829 29917 0.1% 29917.0 -- YKK-USA - YKK USA,INC 2 - AS27289 18394 0.0% 18394.0 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 3 - AS22072 18247 0.0% 18247.0 -- 4 - AS15126 9123 0.0% 9123.0 -- ASMC - American Suzuki Motor Corporation 5 - AS43403 18143 0.0% 9071.5 -- SVIAZ-PLUS-AS LLC "Sviaz Plus" 6 - AS30850 14060 0.0% 7030.0 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 7 - AS10275 13516 0.0% 6758.0 -- AS-UNITEDNETWORK - ABS-CBN International 8 - AS13285 36103 0.1% 5157.6 -- OPALTELECOM-AS Opal Telecom 9 - AS30707 12364 0.0% 4121.3 -- 10 - AS36011 7902 0.0% 3951.0 -- AHSYS-ASN - Atlantic Health System 11 - AS42611 3528 0.0% 3528.0 -- HOSTUA-AS hosing.com.ua AS 12 - AS30375 3212 0.0% 3212.0 -- TEVA-NA - Teva Pharmaceuticals USA, INC 13 - AS20816 2625 0.0% 2625.0 -- IIP-NET-AS20816 Science and Society Telecomm Center 14 - AS16312 2356 0.0% 2356.0 -- ASN-ZWEITWERK # AS-ZWEITWERK CONVERTED TO ASN-ZWEITWERK FOR RPSL COMPLIANCE Zweitwerk GmbH & Co KG 15 - AS3538 4078 0.0% 2039.0 -- ITSDN-U1 - DoD Network Information Center 16 - AS41688 10021 0.0% 2004.2 -- COSMOFON-AS AS for Cosmofon 17 - AS21348 3830 0.0% 1915.0 -- KOPTERIFI KOPTERIFI is autonomous system. Located in Vammala Finland 18 - AS29425 1884 0.0% 1884.0 -- SAKHCOM-AS SAKHCOM-NETWORK AS 19 - AS13620 20610 0.1% 1873.6 -- ASN-ELAN - Elan Communications, Inc. 20 - AS43046 1762 0.0% 1762.0 -- MSOLS-AS MSOLS LTD TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.135.22.0/24 49437 0.1% AS9583 -- SIFY-AS-IN Sify Limited 2 - 117.58.192.0/19 33284 0.1% AS7491 -- PI-PH-AS-AP PI-PHILIPINES 3 - 62.24.238.0/24 32960 0.1% AS13285 -- OPALTELECOM-AS Opal Telecom 4 - 12.108.254.0/24 29917 0.1% AS26829 -- YKK-USA - YKK USA,INC 5 - 80.243.64.0/20 29496 0.1% AS21332 -- NTC-AS New Telephone Company 6 - 221.135.113.0/24 27018 0.1% AS9583 -- SIFY-AS-IN Sify Limited 7 - 209.163.125.0/24 26998 0.1% AS14390 -- CORENET - Coretel America, Inc. 8 - 208.46.32.0/24 18394 0.0% AS27289 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 9 - 12.106.30.0/24 18247 0.0% AS22072 -- 10 - 221.135.253.0/24 17581 0.0% AS9583 -- SIFY-AS-IN Sify Limited 11 - 202.56.250.0/24 16815 0.0% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 12 - 193.46.60.0/24 15950 0.0% AS43403 -- SVIAZ-PLUS-AS LLC "Sviaz Plus" 13 - 203.101.87.0/24 15296 0.0% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 14 - 194.110.73.0/24 14019 0.0% AS30850 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 15 - 64.95.193.0/24 12314 0.0% AS30707 -- 16 - 89.4.131.0/24 12245 0.0% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 17 - 221.135.80.0/24 12187 0.0% AS9583 -- SIFY-AS-IN Sify Limited 18 - 210.18.10.0/24 12079 0.0% AS9583 -- SIFY-AS-IN Sify Limited 19 - 89.4.130.0/24 11867 0.0% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 20 - 203.63.26.0/24 10860 0.0% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 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