BGP Update Report Interval: 27-Aug-07 -to- 27-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 1100623 1.7% 565.6 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS4323 758420 1.1% 545.6 -- TWTC - Time Warner Telecom, Inc. 3 - AS9583 716772 1.1% 614.2 -- SIFY-AS-IN Sify Limited 4 - AS4755 659154 1.0% 457.7 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 5 - AS4134 634343 1.0% 462.7 -- CHINANET-BACKBONE No.31,Jin-rong Street 6 - AS6197 624732 0.9% 601.9 -- BATI-ATL - BellSouth Network Solutions, Inc 7 - AS18566 620689 0.9% 603.2 -- COVAD - Covad Communications Co. 8 - AS174 587048 0.9% 584.7 -- COGENT Cogent/PSI 9 - AS9498 544572 0.8% 532.8 -- BBIL-AP BHARTI BT INTERNET LTD. 10 - AS7011 540857 0.8% 568.1 -- FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. 11 - AS4766 455586 0.7% 559.7 -- KIXS-AS-KR Korea Telecom 12 - AS22773 449427 0.7% 574.7 -- CCINET-2 - Cox Communications Inc. 13 - AS209 434641 0.7% 560.8 -- ASN-QWEST - Qwest 14 - AS6198 358334 0.5% 610.4 -- BATI-MIA - BellSouth Network Solutions, Inc 15 - AS18101 357173 0.5% 576.1 -- RIL-IDC Reliance Infocom Ltd Internet Data Centre, 16 - AS852 354993 0.5% 594.6 -- ASN852 - Telus Advanced Communications 17 - AS4812 330406 0.5% 577.6 -- CHINANET-SH-AP China Telecom (Group) 18 - AS3356 314643 0.5% 456.7 -- LEVEL3 Level 3 Communications 19 - AS19916 314146 0.5% 553.1 -- ASTRUM-0001 - OLM LLC 20 - AS5668 310612 0.5% 467.8 -- AS-5668 - CenturyTel Internet Holdings, Inc. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS43403 61986 0.1% 30993.0 -- SVIAZ-PLUS-AS LLC "Sviaz Plus" 2 - AS26829 24244 0.0% 24244.0 -- YKK-USA - YKK USA,INC 3 - AS10275 20793 0.0% 10396.5 -- AS-UNITEDNETWORK - ABS-CBN International 4 - AS15126 6526 0.0% 6526.0 -- ASMC - American Suzuki Motor Corporation 5 - AS36011 12870 0.0% 6435.0 -- AHSYS-ASN - Atlantic Health System 6 - AS9264 12897 0.0% 4299.0 -- ASNET Academic Sinica 7 - AS30707 12848 0.0% 4282.7 -- 8 - AS22072 3946 0.0% 3946.0 -- 9 - AS42611 3513 0.0% 3513.0 -- HOSTUA-AS hosing.com.ua AS 10 - AS32650 3345 0.0% 3345.0 -- SANDHILLS-SW - SANDHILLS PUBLISHING 11 - AS30619 60415 0.1% 3020.8 -- TDM-AS 12 - AS24697 5431 0.0% 2715.5 -- SATURN-ASN Saturn ISP AS 13 - AS39396 15882 0.0% 2647.0 -- NBIS-AS NBI Systems Ltd. 14 - AS34770 18370 0.0% 2624.3 -- ELITSAT-AS Elit SAT AD - Rousse 15 - AS16312 2361 0.0% 2361.0 -- ASN-ZWEITWERK # AS-ZWEITWERK CONVERTED TO ASN-ZWEITWERK FOR RPSL COMPLIANCE Zweitwerk GmbH & Co KG 16 - AS13285 14725 0.0% 2103.6 -- OPALTELECOM-AS Opal Telecom 17 - AS30375 1976 0.0% 1976.0 -- TEVA-NA - Teva Pharmaceuticals USA, INC 18 - AS28733 5846 0.0% 1948.7 -- AVIGAL-AS IT master LLC 19 - AS19874 1784 0.0% 1784.0 -- CDI-01 - CUSTOM DIRECT 20 - AS34368 62522 0.1% 1736.7 -- THEZONE "Zonata - Natzkovi & Sie" LTD. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.135.22.0/24 46961 0.1% AS9583 -- SIFY-AS-IN Sify Limited 2 - 202.56.250.0/24 43724 0.1% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 3 - 203.101.87.0/24 42545 0.1% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 4 - 209.163.125.0/24 38383 0.1% AS14390 -- CORENET - Coretel America, Inc. 5 - 193.46.60.0/24 37948 0.1% AS43403 -- SVIAZ-PLUS-AS LLC "Sviaz Plus" 6 - 210.18.10.0/24 37705 0.1% AS9583 -- SIFY-AS-IN Sify Limited 7 - 221.135.113.0/24 35936 0.1% AS9583 -- SIFY-AS-IN Sify Limited 8 - 80.243.64.0/20 30405 0.1% AS21332 -- NTC-AS New Telephone Company 9 - 210.214.173.0/24 25901 0.0% AS9583 -- SIFY-AS-IN Sify Limited 10 - 210.214.177.0/24 25802 0.0% AS9583 -- SIFY-AS-IN Sify Limited 11 - 210.214.221.0/24 25774 0.0% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.214.220.0/24 25767 0.0% AS9583 -- SIFY-AS-IN Sify Limited 13 - 221.135.77.0/24 25652 0.0% AS9583 -- SIFY-AS-IN Sify Limited 14 - 210.214.210.0/24 25617 0.0% AS9583 -- SIFY-AS-IN Sify Limited 15 - 210.214.211.0/24 25593 0.0% AS9583 -- SIFY-AS-IN Sify Limited 16 - 210.214.172.0/24 25389 0.0% AS9583 -- SIFY-AS-IN Sify Limited 17 - 12.108.254.0/24 24244 0.0% AS26829 -- YKK-USA - YKK USA,INC 18 - 91.194.244.0/24 24038 0.0% AS43403 -- SVIAZ-PLUS-AS LLC "Sviaz Plus" 19 - 210.214.179.0/24 16399 0.0% AS9583 -- SIFY-AS-IN Sify Limited 20 - 210.214.183.0/24 16281 0.0% AS9583 -- SIFY-AS-IN Sify Limited 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