BGP Update Report Interval: 22-Jul-07 -to- 22-Aug-07 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9583 163916 2.6% 138.7 -- SIFY-AS-IN Sify Limited 2 - AS14906 130044 2.0% 26008.8 -- 3 - AS6837 78025 1.2% 696.7 -- SWISSCOM-TRANSIT-AS Swisscom Solutions AG 4 - AS4621 67480 1.1% 455.9 -- UNSPECIFIED UNINET-TH 5 - AS24731 65731 1.0% 1603.2 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 6 - AS14201 61213 1.0% 6121.3 -- 7 - AS7018 60027 0.9% 38.7 -- ATT-INTERNET4 - AT&T WorldNet Services 8 - AS30850 56101 0.9% 28050.5 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 9 - AS13285 47915 0.8% 6845.0 -- OPALTELECOM-AS Opal Telecom 10 - AS17974 36842 0.6% 91.2 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 11 - AS237 34504 0.5% 203.0 -- MERIT-AS-14 - Merit Network Inc. 12 - AS702 33242 0.5% 50.4 -- AS702 Verizon Business EMEA - Commercial IP service provider in Europe 13 - AS27289 32634 0.5% 32634.0 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 14 - AS21332 31314 0.5% 1252.6 -- NTC-AS New Telephone Company 15 - AS12975 29787 0.5% 607.9 -- PALTEL-AS PALTEL Autonomous System 16 - AS26210 29423 0.5% 282.9 -- AES Communications Bolivia S.A. 17 - AS8764 29122 0.5% 17.4 -- TEOLTAB TEO LT AB Autonomous System 18 - AS7545 29098 0.5% 38.3 -- TPG-INTERNET-AP TPG Internet Pty Ltd 19 - AS13620 29088 0.5% 2644.4 -- ASN-ELAN - Elan Communications, Inc. 20 - AS5803 27601 0.4% 212.3 -- DDN-ASNBLK - DoD Network Information Center TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS27289 32634 0.5% 32634.0 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 2 - AS30850 56101 0.9% 28050.5 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 3 - AS14906 130044 2.0% 26008.8 -- 4 - AS22072 25497 0.4% 25497.0 -- 5 - AS26829 12053 0.2% 12053.0 -- YKK-USA - YKK USA,INC 6 - AS13285 47915 0.8% 6845.0 -- OPALTELECOM-AS Opal Telecom 7 - AS43043 6523 0.1% 6523.0 -- INTERKOM-AS Interkom Sp. z o.o. 8 - AS14201 61213 1.0% 6121.3 -- 9 - AS21348 10912 0.2% 5456.0 -- KOPTERIFI KOPTERIFI is autonomous system. Located in Vammala Finland 10 - AS30707 13827 0.2% 4609.0 -- 11 - AS22433 4260 0.1% 4260.0 -- HRMC - Human Resource Management Center, Inc. 12 - AS39408 3100 0.1% 3100.0 -- CZ-ETHERNET AVI ethernet.cz 13 - AS19001 5927 0.1% 2963.5 -- AVENTCOMMTECH - Aventure Communications 14 - AS41688 17539 0.3% 2923.2 -- COSMOFON-AS AS for Cosmofon 15 - AS13620 29088 0.5% 2644.4 -- ASN-ELAN - Elan Communications, Inc. 16 - AS9660 7393 0.1% 2464.3 -- KANNET-AS-AP Telecommunication and ISP company 17 - AS20816 2417 0.0% 2417.0 -- IIP-NET-AS20816 Science and Society Telecomm Center 18 - AS40359 2283 0.0% 2283.0 -- SOUTHEASTERNMILLS-ROME - Southeastern Mills, Inc. 19 - AS30375 2272 0.0% 2272.0 -- TEVA-NA - Teva Pharmaceuticals USA, INC 20 - AS21452 14262 0.2% 2037.4 -- skannet-ibadan TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 194.110.73.0/24 56081 0.8% AS30850 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 2 - 221.135.22.0/24 52269 0.8% AS9583 -- SIFY-AS-IN Sify Limited 3 - 221.135.253.0/24 50241 0.7% AS9583 -- SIFY-AS-IN Sify Limited 4 - 62.24.238.0/24 47859 0.7% AS13285 -- OPALTELECOM-AS Opal Telecom 5 - 208.46.32.0/24 32634 0.5% AS27289 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 6 - 170.65.189.0/24 30669 0.5% AS14201 -- 7 - 170.65.176.0/22 30471 0.5% AS14201 -- 8 - 80.243.64.0/20 30324 0.5% AS21332 -- NTC-AS New Telephone Company 9 - 12.27.90.0/24 29515 0.4% AS14906 -- 10 - 12.27.91.0/24 29496 0.4% AS14906 -- 11 - 12.106.30.0/24 25497 0.4% AS22072 -- 12 - 12.27.88.0/24 24257 0.4% AS14906 -- 13 - 12.27.89.0/24 24140 0.3% AS14906 -- 14 - 117.58.192.0/19 22709 0.3% AS7491 -- PI-PH-AS-AP PI-PHILIPINES 15 - 12.27.88.0/22 22636 0.3% AS14906 -- 16 - 210.214.198.0/24 19344 0.3% AS9583 -- SIFY-AS-IN Sify Limited 17 - 64.95.193.0/24 13808 0.2% AS30707 -- 18 - 89.4.131.0/24 13503 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 19 - 218.241.100.0/24 13158 0.2% AS24151 -- CNNIC-CRITICAL-AP China Internet Network Infomation Center 20 - 77.247.128.0/20 13114 0.2% AS34034 -- ARCTEL-AS Arctel Company Main AS AS43043 -- INTERKOM-AS Interkom Sp. z o.o. 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