BGP Update Report Interval: 06-Apr-07 -to- 19-Apr-07 (14 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9121 32228 3.0% 28.1 -- TTNET TTnet Autonomous System 2 - AS4775 29436 2.7% 377.4 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 3 - AS17974 28478 2.6% 92.8 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 4 - AS8151 18614 1.7% 5.8 -- Uninet S.A. de C.V. 5 - AS9829 16664 1.5% 82.9 -- BSNL-NIB National Internet Backbone 6 - AS24731 14956 1.4% 332.4 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 7 - AS5803 10646 1.0% 129.8 -- DDN-ASNBLK - DoD Network Information Center 8 - AS306 10643 1.0% 64.5 -- DNIC - DoD Network Information Center 9 - AS6198 8760 0.8% 15.3 -- BATI-MIA - BellSouth Network Solutions, Inc 10 - AS5501 8147 0.8% 177.1 -- FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 11 - AS702 7399 0.7% 10.7 -- AS702 Verizon Business EMEA - Commercial IP service provider in Europe 12 - AS17645 6789 0.6% 617.2 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 13 - AS9875 6220 0.6% 132.3 -- PESAT1-AS-AP PT. Pasifik Satelit Nusantara 14 - AS12654 6181 0.6% 363.6 -- RIPE-NCC-RIS-AS RIPE NCC RIS project 15 - AS23966 5843 0.5% 52.2 -- DANCOM-AS-AP Dancom Online Services 16 - AS15611 5741 0.5% 59.8 -- Iranian Research Organisation 17 - AS9583 5480 0.5% 8.9 -- SIFY-AS-IN Sify Limited 18 - AS38077 5272 0.5% 1318.0 -- TIMOR-TELECOM-AS-AP Timor Telecom, SA 19 - AS7011 5260 0.5% 9.5 -- FRONTIER-AND-CITIZENS - Frontier Communications, Inc. 20 - AS16322 5225 0.5% 79.2 -- PARSONLINE PARSONLINE Autonomous System TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS31594 4090 0.4% 4090.0 -- FORTESS-AS Fortess LLC Network 2 - AS30707 1639 0.1% 1639.0 -- 3 - AS38077 5272 0.5% 1318.0 -- TIMOR-TELECOM-AS-AP Timor Telecom, SA 4 - AS33025 1006 0.1% 1006.0 -- QE-ASN-01 - Quinn Emanuel Urquhart Oliver & Hedges LLP 5 - AS29700 2725 0.2% 908.3 -- CYPRESS-SEMICONDUCTOR - Cypress Semiconductor 6 - AS34378 852 0.1% 852.0 -- RUG-AS Razguliay-UKRROS Group 7 - AS5609 1660 0.1% 830.0 -- ASN-CSELT # AS-CSELT CONVERTED TO ASN-CSELT FOR RPSL COMPLIANCE CSELT S.p.A. is a Research Center for the study, research, 8 - AS12408 757 0.1% 757.0 -- BIKENT-AS Bikent Ltd. Autonomous system 9 - AS3944 635 0.1% 635.0 -- PARTAN-LAB - Partan & Partan 10 - AS17645 6789 0.6% 617.2 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 11 - AS25872 577 0.1% 577.0 -- ARQULE - ArQule Inc. 12 - AS32761 572 0.1% 572.0 -- WASSE-NYC - Wasserstein & Co. 13 - AS33188 1119 0.1% 559.5 -- SCS-NETWORK-1 - Sono Corporate Suites 14 - AS41555 536 0.1% 536.0 -- NOVATKL-AS FW Austria, Kundl 15 - AS35673 519 0.1% 519.0 -- BANK-CASPIAN-AS Bank Caspian JSC 16 - AS14346 3035 0.3% 505.8 -- S.A O Estado de Sao Paulo 17 - AS17555 498 0.1% 498.0 -- SPRINGFIELD-AS-AP Springfield NOC 18 - AS23917 975 0.1% 487.5 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 19 - AS21713 3733 0.3% 466.6 -- BULLOCH - Bulloch Telephone 20 - AS14309 3033 0.3% 433.3 -- G2ANET - Go2America LLC TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 203.177.8.0/24 9745 0.7% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 2 - 203.177.10.0/24 9515 0.7% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 3 - 203.177.132.0/24 9510 0.7% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 4 - 81.213.47.0/24 7079 0.5% AS9121 -- TTNET TTnet Autonomous System 5 - 81.212.197.0/24 6743 0.5% AS9121 -- TTNET TTnet Autonomous System 6 - 194.242.124.0/22 4090 0.3% AS31594 -- FORTESS-AS Fortess LLC Network 7 - 59.94.240.0/20 3856 0.3% AS9829 -- BSNL-NIB National Internet Backbone 8 - 59.94.192.0/20 3712 0.3% AS9829 -- BSNL-NIB National Internet Backbone 9 - 59.94.160.0/20 3712 0.3% AS9829 -- BSNL-NIB National Internet Backbone 10 - 59.95.240.0/20 3710 0.3% AS9829 -- BSNL-NIB National Internet Backbone 11 - 89.4.131.0/24 3378 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 12 - 163.191.160.0/19 3313 0.2% AS11828 -- SOINET - State of Illinois/CMS 13 - 89.4.129.0/24 3309 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 14 - 89.4.128.0/24 3245 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 15 - 89.4.130.0/24 3238 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 16 - 81.212.141.0/24 2894 0.2% AS9121 -- TTNET TTnet Autonomous System 17 - 80.243.64.0/20 2346 0.2% AS21332 -- NTC-AS New Telephone Company 18 - 58.71.70.0/24 2294 0.2% AS9299 -- IPG-AS-AP Philippine Long Distance Telephone Company 19 - 202.136.182.0/24 2176 0.2% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 20 - 202.136.176.0/24 2170 0.2% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE 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 ausnog@ausnog.net