BGP Update Report Interval: 18-May-07 -to- 31-May-07 (13 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS17486 35740 1.0% 334.0 -- SWIFTEL1-AP Swiftel Communications Pty Ltd/People Telecom Ltd 2 - AS4134 31482 0.9% 24.9 -- CHINANET-BACKBONE No.31,Jin-rong Street 3 - AS9583 29324 0.8% 25.8 -- SIFY-AS-IN Sify Limited 4 - AS17974 26730 0.8% 49.0 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 5 - AS11492 25061 0.7% 23.2 -- CABLEONE - CABLE ONE 6 - AS6478 23057 0.7% 20.8 -- ATT-INTERNET3 - AT&T WorldNet Services 7 - AS2386 19304 0.6% 16.7 -- INS-AS - AT&T Data Communications Services 8 - AS1239 18430 0.5% 22.4 -- SPRINTLINK - Sprint 9 - AS8151 18301 0.5% 13.8 -- Uninet S.A. de C.V. 10 - AS7018 17897 0.5% 11.9 -- ATT-INTERNET4 - AT&T WorldNet Services 11 - AS4621 16435 0.5% 114.9 -- UNSPECIFIED UNINET-TH 12 - AS4775 16280 0.5% 106.4 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 13 - AS4323 15665 0.5% 12.2 -- TWTC - Time Warner Telecom, Inc. 14 - AS4538 15545 0.4% 5.8 -- ERX-CERNET-BKB China Education and Research Network Center 15 - AS24731 15072 0.4% 342.5 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 16 - AS4750 14439 0.4% 60.4 -- LOXLEY-TH Loxley Information Co., Ltd. 17 - AS4755 14143 0.4% 11.5 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 18 - AS9498 13312 0.4% 13.3 -- BBIL-AP BHARTI BT INTERNET LTD. 19 - AS6198 12560 0.4% 22.2 -- BATI-MIA - BellSouth Network Solutions, Inc 20 - AS702 12536 0.4% 18.4 -- AS702 Verizon Business EMEA - Commercial IP service provider in Europe TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS12408 1356 0.0% 1356.0 -- BIKENT-AS Bikent Ltd. Autonomous system 2 - AS27096 1078 0.0% 1078.0 -- DDN-ASNBLK1 - DoD Network Information Center 3 - AS34378 1038 0.0% 1038.0 -- RUG-AS Razguliay-UKRROS Group 4 - AS22818 3039 0.1% 1013.0 -- Directnet Prestacao de Servicos Ltda. 5 - AS41327 2736 0.1% 912.0 -- MT-ITTELECOM IT & T AS number 6 - AS36103 812 0.0% 812.0 -- CENTRALUTAH - Central Utah Telephone, Inc. 7 - AS10178 8657 0.2% 787.0 -- KBTUS-AS Korea Baptist Theological University/Seminary 8 - AS30600 1409 0.0% 704.5 -- CSDI-ASN01 - Corbett Systems Development, Inc. 9 - AS34208 1387 0.0% 693.5 -- ZMP-GDANSK-AS Zarzad Morskiego Portu Gdansk S.A. 10 - AS36324 3423 0.1% 684.6 -- VOSTROM-PUBLIC - VOSTROM Holdings, Inc. 11 - AS41664 646 0.0% 646.0 -- SEMSER-AS Semser Provider LLP 12 - AS22408 4616 0.1% 577.0 -- WKNET - West Ky Networks 13 - AS17645 5579 0.2% 507.2 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 14 - AS34988 503 0.0% 503.0 -- EWS English Welsh and Scottish Railways 15 - AS13405 1893 0.1% 473.2 -- AS-OCNET - oc-net inc 16 - AS30707 1363 0.0% 454.3 -- 17 - AS9747 3014 0.1% 430.6 -- EZINTERNET-AS-AP EZInternet Pty Ltd 18 - AS33188 789 0.0% 394.5 -- SCS-NETWORK-1 - Sono Corporate Suites 19 - AS25554 762 0.0% 381.0 -- MINFIN-AS Ministry of Finance of Bulgarian Government 20 - AS14482 364 0.0% 364.0 -- DOMAIN-SYSTEMS - Domain Systems, Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 203.17.214.0/24 13635 0.4% AS17486 -- SWIFTEL1-AP Swiftel Communications Pty Ltd/People Telecom Ltd 2 - 203.11.108.0/24 13635 0.4% AS17486 -- SWIFTEL1-AP Swiftel Communications Pty Ltd/People Telecom Ltd 3 - 203.177.132.0/24 7082 0.2% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 4 - 203.177.10.0/24 7078 0.2% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 5 - 203.23.208.0/24 4371 0.1% AS7604 -- HWY1-AS Highway 1 6 - 221.135.253.0/24 3564 0.1% AS9583 -- SIFY-AS-IN Sify Limited 7 - 89.4.128.0/24 3054 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 8 - 89.4.130.0/24 3039 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 9 - 89.4.129.0/24 3039 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 10 - 203.63.26.0/24 2971 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 11 - 194.42.208.0/20 2546 0.1% AS705 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 12 - 89.4.158.0/24 2533 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 13 - 58.65.1.0/24 1865 0.1% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 14 - 202.136.176.0/24 1815 0.1% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 15 - 202.136.182.0/24 1814 0.1% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 16 - 89.4.131.0/24 1804 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 17 - 201.23.0.0/17 1501 0.0% AS22818 -- Directnet Prestacao de Servicos Ltda. AS28590 -- Neovia Telecomunicacoes S.A. 18 - 200.218.224.0/20 1501 0.0% AS22818 -- Directnet Prestacao de Servicos Ltda. AS28590 -- Neovia Telecomunicacoes S.A. 19 - 216.85.83.0/24 1436 0.0% AS4323 -- TWTC - Time Warner Telecom, Inc. 20 - 194.15.147.0/24 1356 0.0% AS12408 -- BIKENT-AS Bikent Ltd. Autonomous system 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