BGP Update Report Interval: 06-Apr-09 -to- 07-May-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS6389 392748 4.1% 90.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc. 2 - AS3130 137093 1.4% 531.4 -- RGNET-3130 RGnet/PSGnet 3 - AS2386 116477 1.2% 89.6 -- INS-AS - AT&T Data Communications Services 4 - AS8452 112790 1.2% 81.0 -- TEDATA TEDATA 5 - AS6478 86719 0.9% 61.4 -- ATT-INTERNET3 - AT&T WorldNet Services 6 - AS17488 80855 0.8% 51.0 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 7 - AS11492 75669 0.8% 61.4 -- CABLEONE - CABLE ONE, INC. 8 - AS7018 66390 0.7% 43.7 -- ATT-INTERNET4 - AT&T WorldNet Services 9 - AS4323 63847 0.7% 14.8 -- TWTC - tw telecom holdings, inc. 10 - AS19262 59691 0.6% 60.1 -- VZGNI-TRANSIT - Verizon Internet Services Inc. 11 - AS29049 57957 0.6% 179.4 -- DELTA-TELECOM-AS Delta Telecom LTD. 12 - AS9829 55044 0.6% 84.4 -- BSNL-NIB National Internet Backbone 13 - AS35805 54897 0.6% 162.4 -- UTG-AS United Telecom AS 14 - AS21491 54046 0.6% 1743.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 15 - AS20115 53058 0.6% 31.2 -- CHARTER-NET-HKY-NC - Charter Communications 16 - AS10796 52523 0.5% 101.6 -- SCRR-10796 - Road Runner HoldCo LLC 17 - AS4755 48911 0.5% 39.0 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 18 - AS8151 45529 0.5% 31.2 -- Uninet S.A. de C.V. 19 - AS12978 37903 0.4% 210.6 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 20 - AS33776 36400 0.4% 311.1 -- STARCOMMS-ASN TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS15045 28705 0.3% 9568.3 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 2 - AS40967 4229 0.0% 4229.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH 3 - AS46653 12377 0.1% 4125.7 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A. 4 - AS32398 20650 0.2% 3441.7 -- REALNET-ASN-1 5 - AS13153 2544 0.0% 2544.0 -- ONEWORLD OneWorld S.A. 6 - AS29229 2444 0.0% 2444.0 -- ASDA-AS Assotiation for the Development of West Athens 7 - AS13325 18957 0.2% 2369.6 -- STOMI - State of Michigan, DMB-CNOC 8 - AS8499 2171 0.0% 2171.0 -- Space Hellas Network Operation Center (NOC) 9 - AS30423 4073 0.0% 2036.5 -- AMEDI-3-ASN1 - Amedisys, Inc. 10 - AS28256 1952 0.0% 1952.0 -- 11 - AS47640 5811 0.1% 1937.0 -- TRICOMPAS Tricomp Sp. z. o. o. 12 - AS5050 25297 0.3% 1806.9 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS21491 54046 0.6% 1743.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 14 - AS46328 15393 0.2% 1710.3 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 15 - AS28953 2325 0.0% 1162.5 -- PIRAEUSBANK Greek banking institution 16 - AS14223 2323 0.0% 1161.5 -- NYSDOH - New York State Department of Health 17 - AS48881 1082 0.0% 1082.0 -- DATA-NODE-AS SC Data Node SRL 18 - AS47299 1080 0.0% 1080.0 -- DRSA-AS Dlugie Rozmowy S.A. 19 - AS34321 2081 0.0% 1040.5 -- LDK-AS Institute of strategic marks, Kiev, Ukraine 20 - AS19398 2040 0.0% 1020.0 -- INDENET - Indenet.net TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/24 24848 0.2% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 41.204.2.0/24 20294 0.2% AS32398 -- REALNET-ASN-1 3 - 199.45.13.0/24 12357 0.1% AS46653 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A. 4 - 192.12.120.0/24 10388 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation 5 - 63.103.104.0/22 9975 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 6 - 63.103.108.0/23 9975 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 7 - 63.103.110.0/24 8755 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC. 8 - 123.49.152.0/24 7059 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 9 - 195.96.69.0/24 6592 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System 11 - 123.49.144.0/21 6305 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd. 12 - 94.124.16.0/21 5723 0.1% AS47640 -- TRICOMPAS Tricomp Sp. z. o. o. 13 - 193.201.184.0/21 5630 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services 14 - 81.199.18.0/24 5588 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 15 - 81.199.16.0/22 5269 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 16 - 81.199.23.0/24 5262 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 17 - 81.199.22.0/24 5207 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 18 - 196.0.0.0/16 5182 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 19 - 81.199.28.0/22 5144 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa 20 - 192.35.129.0/24 5116 0.1% AS6629 -- NOAA-AS - NOAA 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