BGP Update Report Interval: 25-May-07 -to- 07-Jun-07 (14 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS6478 61867 1.0% 56.0 -- ATT-INTERNET3 - AT&T WorldNet Services 2 - AS9583 51441 0.8% 45.3 -- SIFY-AS-IN Sify Limited 3 - AS17486 46604 0.8% 435.6 -- SWIFTEL1-AP Swiftel Communications Pty Ltd/People Telecom Ltd 4 - AS2386 44118 0.7% 38.0 -- INS-AS - AT&T Data Communications Services 5 - AS7018 37936 0.6% 25.0 -- ATT-INTERNET4 - AT&T WorldNet Services 6 - AS4134 35415 0.6% 27.9 -- CHINANET-BACKBONE No.31,Jin-rong Street 7 - AS11492 31478 0.5% 29.0 -- CABLEONE - CABLE ONE 8 - AS4621 29376 0.5% 205.4 -- UNSPECIFIED UNINET-TH 9 - AS6198 28459 0.5% 50.0 -- BATI-MIA - BellSouth Network Solutions, Inc 10 - AS4323 26663 0.4% 20.7 -- TWTC - Time Warner Telecom, Inc. 11 - AS8151 26368 0.4% 19.7 -- Uninet S.A. de C.V. 12 - AS9498 26202 0.4% 25.7 -- BBIL-AP BHARTI BT INTERNET LTD. 13 - AS4775 25664 0.4% 167.7 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 14 - AS4755 24373 0.4% 19.6 -- VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 15 - AS24326 24165 0.4% 215.8 -- TTT-AS-AP TT&T Public Company Limited, Service Provider,Bangkok 16 - AS6197 22829 0.4% 21.9 -- BATI-ATL - BellSouth Network Solutions, Inc 17 - AS24731 22629 0.4% 526.3 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 18 - AS4538 21902 0.4% 8.1 -- ERX-CERNET-BKB China Education and Research Network Center 19 - AS17974 21413 0.3% 59.2 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 20 - AS4750 21291 0.3% 102.9 -- LOXLEY-TH Loxley Information Co., Ltd. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS27096 1814 0.0% 1814.0 -- DDN-ASNBLK1 - DoD Network Information Center 2 - AS34378 1648 0.0% 1648.0 -- RUG-AS Razguliay-UKRROS Group 3 - AS12408 1448 0.0% 1448.0 -- BIKENT-AS Bikent Ltd. Autonomous system 4 - AS41327 3516 0.1% 1172.0 -- MT-ITTELECOM IT & T AS number 5 - AS10178 12601 0.2% 1145.5 -- KBTUS-AS Korea Baptist Theological University/Seminary 6 - AS30600 1979 0.0% 989.5 -- CSDI-ASN01 - Corbett Systems Development, Inc. 7 - AS13405 3867 0.1% 966.8 -- AS-OCNET - oc-net inc 8 - AS22408 7547 0.1% 943.4 -- WKNET - West Ky Networks 9 - AS36324 4167 0.1% 833.4 -- VOSTROM-PUBLIC - VOSTROM Holdings, Inc. 10 - AS36103 821 0.0% 821.0 -- CENTRALUTAH - Central Utah Telephone, Inc. 11 - AS30707 2296 0.0% 765.3 -- 12 - AS17645 8343 0.1% 758.5 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 13 - AS34208 1431 0.0% 715.5 -- ZMP-GDANSK-AS Zarzad Morskiego Portu Gdansk S.A. 14 - AS28977 1346 0.0% 673.0 -- UN-UNLB United Nations Logistics Base Brindisi, Italy 15 - AS22818 1826 0.0% 608.7 -- Directnet Prestacao de Servicos Ltda. 16 - AS23910 598 0.0% 598.0 -- CNGI-CERNET2-AS-AP China Next Generation Internet CERNET2 17 - AS31254 560 0.0% 560.0 -- IPSTUDIO-AS IP Studio 18 - AS22720 1108 0.0% 554.0 -- LEXENT-INC-3NYP-301 - Lexent, Inc. 19 - AS24731 22629 0.4% 526.3 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 20 - AS22433 522 0.0% 522.0 -- HRMC - Human Resource Management Center, Inc. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 203.17.214.0/24 18320 0.3% AS17486 -- SWIFTEL1-AP Swiftel Communications Pty Ltd/People Telecom Ltd 2 - 203.11.108.0/24 18320 0.3% AS17486 -- SWIFTEL1-AP Swiftel Communications Pty Ltd/People Telecom Ltd 3 - 203.177.10.0/24 10718 0.2% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 4 - 203.177.132.0/24 10698 0.2% AS4775 -- GLOBE-TELECOM-AS Telecom Carrier / ISP Plus + 5 - 203.23.208.0/24 8224 0.1% AS7604 -- HWY1-AS Highway 1 6 - 221.135.253.0/24 6244 0.1% AS9583 -- SIFY-AS-IN Sify Limited 7 - 194.42.208.0/20 5411 0.1% AS705 -- UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 8 - 89.4.128.0/24 4636 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 9 - 89.4.130.0/24 4591 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 10 - 89.4.129.0/24 4374 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 11 - 89.4.158.0/24 3832 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 12 - 89.4.131.0/24 3744 0.1% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 13 - 203.63.26.0/24 3714 0.1% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 14 - 58.65.1.0/24 2754 0.0% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 15 - 202.136.176.0/24 2678 0.0% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 16 - 202.136.182.0/24 2676 0.0% AS17645 -- NTT-SG-AP ASN - NTT SINGAPORE PTE LTD 17 - 64.95.193.0/24 2256 0.0% AS30707 -- 18 - 216.85.83.0/24 1844 0.0% AS4323 -- TWTC - Time Warner Telecom, Inc. 19 - 214.15.159.0/24 1814 0.0% AS27096 -- DDN-ASNBLK1 - DoD Network Information Center 20 - 193.242.123.0/24 1648 0.0% AS34378 -- RUG-AS Razguliay-UKRROS Group 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