BGP Update Report Interval: 20-Aug-07 -to- 20-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 1090414 1.8% 445.1 -- ERX-CERNET-BKB China Education and Research Network Center 2 - AS4323 687708 1.1% 497.3 -- TWTC - Time Warner Telecom, Inc. 3 - AS4755 672986 1.1% 470.9 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 4 - AS18566 628015 1.0% 612.1 -- COVAD - Covad Communications Co. 5 - AS4134 594495 1.0% 435.8 -- CHINANET-BACKBONE No.31,Jin-rong Street 6 - AS6197 585932 0.9% 564.5 -- BATI-ATL - BellSouth Network Solutions, Inc 7 - AS174 555362 0.9% 558.2 -- COGENT Cogent/PSI 8 - AS9583 535054 0.9% 451.9 -- SIFY-AS-IN Sify Limited 9 - AS9498 534747 0.9% 519.7 -- BBIL-AP BHARTI BT INTERNET LTD. 10 - AS7011 467287 0.8% 490.8 -- FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. 11 - AS22773 459810 0.7% 592.5 -- CCINET-2 - Cox Communications Inc. 12 - AS4766 451250 0.7% 554.4 -- KIXS-AS-KR Korea Telecom 13 - AS209 424152 0.7% 549.4 -- ASN-QWEST - Qwest 14 - AS18101 355691 0.6% 574.6 -- RIL-IDC Reliance Infocom Ltd Internet Data Centre, 15 - AS852 352117 0.6% 577.2 -- ASN852 - Telus Advanced Communications 16 - AS6198 347932 0.6% 594.8 -- BATI-MIA - BellSouth Network Solutions, Inc 17 - AS3356 330082 0.5% 490.5 -- LEVEL3 Level 3 Communications 18 - AS4812 326380 0.5% 569.6 -- CHINANET-SH-AP China Telecom (Group) 19 - AS19916 311346 0.5% 548.1 -- ASTRUM-0001 - OLM LLC 20 - AS4808 288058 0.5% 586.7 -- CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS26829 32197 0.1% 32197.0 -- YKK-USA - YKK USA,INC 2 - AS43403 37648 0.1% 18824.0 -- SVIAZ-PLUS-AS LLC "Sviaz Plus" 3 - AS22072 10539 0.0% 10539.0 -- 4 - AS15126 9124 0.0% 9124.0 -- ASMC - American Suzuki Motor Corporation 5 - AS27289 6763 0.0% 6763.0 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 6 - AS10275 13514 0.0% 6757.0 -- AS-UNITEDNETWORK - ABS-CBN International 7 - AS36011 10367 0.0% 5183.5 -- AHSYS-ASN - Atlantic Health System 8 - AS9264 12895 0.0% 4298.3 -- ASNET Academic Sinica 9 - AS30707 12427 0.0% 4142.3 -- 10 - AS42611 3504 0.0% 3504.0 -- HOSTUA-AS hosing.com.ua AS 11 - AS13285 23861 0.0% 3408.7 -- OPALTELECOM-AS Opal Telecom 12 - AS32650 3335 0.0% 3335.0 -- SANDHILLS-SW - SANDHILLS PUBLISHING 13 - AS30850 6213 0.0% 3106.5 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 14 - AS16312 2359 0.0% 2359.0 -- ASN-ZWEITWERK # AS-ZWEITWERK CONVERTED TO ASN-ZWEITWERK FOR RPSL COMPLIANCE Zweitwerk GmbH & Co KG 15 - AS34770 15636 0.0% 2233.7 -- ELITSAT-AS Elit SAT AD - Rousse 16 - AS39396 13230 0.0% 2205.0 -- NBIS-AS NBI Systems Ltd. 17 - AS30619 41094 0.1% 2054.7 -- TDM-AS 18 - AS30375 1973 0.0% 1973.0 -- TEVA-NA - Teva Pharmaceuticals USA, INC 19 - AS20816 1877 0.0% 1877.0 -- IIP-NET-AS20816 Science and Society Telecomm Center 20 - AS19874 1774 0.0% 1774.0 -- CDI-01 - CUSTOM DIRECT TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.135.22.0/24 48066 0.1% AS9583 -- SIFY-AS-IN Sify Limited 2 - 221.135.113.0/24 36781 0.1% AS9583 -- SIFY-AS-IN Sify Limited 3 - 209.163.125.0/24 36095 0.1% AS14390 -- CORENET - Coretel America, Inc. 4 - 12.108.254.0/24 32197 0.1% AS26829 -- YKK-USA - YKK USA,INC 5 - 202.56.250.0/24 30371 0.1% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 6 - 203.101.87.0/24 29098 0.1% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 7 - 80.243.64.0/20 28041 0.0% AS21332 -- NTC-AS New Telephone Company 8 - 193.46.60.0/24 25873 0.0% AS43403 -- SVIAZ-PLUS-AS LLC "Sviaz Plus" 9 - 210.18.10.0/24 24815 0.0% AS9583 -- SIFY-AS-IN Sify Limited 10 - 62.24.238.0/24 22513 0.0% AS13285 -- OPALTELECOM-AS Opal Telecom 11 - 117.58.192.0/19 22339 0.0% AS7491 -- PI-PH-AS-AP PI-PHILIPINES 12 - 210.214.173.0/24 19001 0.0% AS9583 -- SIFY-AS-IN Sify Limited 13 - 210.214.221.0/24 18935 0.0% AS9583 -- SIFY-AS-IN Sify Limited 14 - 210.214.177.0/24 18923 0.0% AS9583 -- SIFY-AS-IN Sify Limited 15 - 210.214.220.0/24 18913 0.0% AS9583 -- SIFY-AS-IN Sify Limited 16 - 221.135.77.0/24 18907 0.0% AS9583 -- SIFY-AS-IN Sify Limited 17 - 210.214.210.0/24 18798 0.0% AS9583 -- SIFY-AS-IN Sify Limited 18 - 210.214.211.0/24 18782 0.0% AS9583 -- SIFY-AS-IN Sify Limited 19 - 210.214.172.0/24 18701 0.0% AS9583 -- SIFY-AS-IN Sify Limited 20 - 221.135.80.0/24 14074 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