BGP Update Report
Interval: 30-Mar-09 -to- 30-Apr-09 (32 days)
Observation Point: BGP Peering with AS131072
TOP 20 Unstable Origin AS
Rank ASN Upds % Upds/Pfx AS-Name
1 - AS6389 371436 4.1% 85.1 -- BELLSOUTH-NET-BLK - BellSouth.net Inc.
2 - AS3130 123394 1.4% 478.3 -- RGNET-3130 RGnet/PSGnet
3 - AS2386 111342 1.2% 85.3 -- INS-AS - AT&T Data Communications Services
4 - AS8452 97850 1.1% 69.2 -- TEDATA TEDATA
5 - AS6478 83258 0.9% 59.5 -- ATT-INTERNET3 - AT&T WorldNet Services
6 - AS17488 77778 0.9% 49.9 -- HATHWAY-NET-AP Hathway IP Over Cable Internet
7 - AS11492 69963 0.8% 56.7 -- CABLEONE - CABLE ONE, INC.
8 - AS29049 67638 0.8% 208.1 -- DELTA-TELECOM-AS Delta Telecom LTD.
9 - AS4323 62131 0.7% 14.4 -- TWTC - tw telecom holdings, inc.
10 - AS7018 60224 0.7% 39.5 -- ATT-INTERNET4 - AT&T WorldNet Services
11 - AS19262 58605 0.7% 59.1 -- VZGNI-TRANSIT - Verizon Internet Services Inc.
12 - AS35805 54928 0.6% 167.5 -- UTG-AS United Telecom AS
13 - AS20115 49616 0.6% 29.5 -- CHARTER-NET-HKY-NC - Charter Communications
14 - AS9829 49466 0.6% 76.6 -- BSNL-NIB National Internet Backbone
15 - AS10796 49370 0.6% 85.0 -- SCRR-10796 - Road Runner HoldCo LLC
16 - AS4755 48369 0.5% 38.6 -- TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
17 - AS8151 44307 0.5% 30.3 -- Uninet S.A. de C.V.
18 - AS21491 42886 0.5% 1383.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
19 - AS9498 37662 0.4% 50.4 -- BBIL-AP BHARTI Airtel Ltd.
20 - AS12978 37120 0.4% 206.2 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS
TOP 20 Unstable Origin AS (Updates per announced prefix)
Rank ASN Upds % Upds/Pfx AS-Name
1 - AS15045 18729 0.2% 6243.0 -- KITTELSON - KITTELSON AND ASSOCIATES, INC.
2 - AS46653 15874 0.2% 5291.3 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A.
3 - AS40967 4236 0.1% 4236.0 -- CSF-AS CSF Computersoftware fuer Fachanwendungen GmbH
4 - AS32398 19356 0.2% 3226.0 -- REALNET-ASN-1
5 - AS7717 2763 0.0% 2763.0 -- OPENIXP-AS-ID-AP OpenIXP ASN
6 - AS14223 5285 0.1% 2642.5 -- NYSDOH - New York State Department of Health
7 - AS30423 4076 0.1% 2038.0 -- AMEDI-3-ASN1 - Amedisys, Inc.
8 - AS46328 18132 0.2% 2014.7 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED
9 - AS47640 5467 0.1% 1822.3 -- TRICOMPAS Tricomp Sp. z. o. o.
10 - AS5050 24977 0.3% 1665.1 -- PSC-EXT - Pittsburgh Supercomputing Center
11 - AS13325 11776 0.1% 1472.0 -- STOMI - State of Michigan, DMB-CNOC
12 - AS21491 42886 0.5% 1383.4 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
13 - AS9796 3831 0.0% 1277.0 -- WIPRO Internet Service Providers
14 - AS34321 2274 0.0% 1137.0 -- LDK-AS Institute of strategic marks, Kiev, Ukraine
15 - AS19398 2003 0.0% 1001.5 -- INDENET - Indenet.net
16 - AS17975 8139 0.1% 904.3 -- APT-AP AS# for peering purpose with IX and ISP.
17 - AS5691 10515 0.1% 808.8 -- MITRE-AS-5 - The MITRE Corporation
18 - AS34996 791 0.0% 791.0 -- ANADOLUSIGORTA-AS Anadolu Sigorta AS
19 - AS41492 787 0.0% 787.0 -- EXIMBANK-AS SC Eximbank SA
20 - AS25412 1520 0.0% 760.0 -- CCRTV-AS CCRTV AS Barcelona Spain
TOP 20 Unstable Prefixes
Rank Prefix Upds % Origin AS -- AS Name
1 - 72.23.246.0/24 24846 0.3% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center
2 - 41.204.2.0/24 19003 0.2% AS32398 -- REALNET-ASN-1
3 - 199.45.13.0/24 15854 0.2% AS46653 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A.
4 - 192.12.120.0/24 10327 0.1% AS5691 -- MITRE-AS-5 - The MITRE Corporation
6 - 192.35.129.0/24 7976 0.1% AS6629 -- NOAA-AS - NOAA
7 - 198.77.177.0/24 7907 0.1% AS6629 -- NOAA-AS - NOAA
8 - 192.102.88.0/24 7894 0.1% AS6629 -- NOAA-AS - NOAA
9 - 63.103.104.0/22 6486 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC.
10 - 63.103.108.0/23 6486 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC.
11 - 195.96.69.0/24 6143 0.1% AS8225 -- ASTELIT-MSK-AS Astelit Autonomous System
12 - 63.103.110.0/24 5757 0.1% AS15045 -- KITTELSON - KITTELSON AND ASSOCIATES, INC.
13 - 193.201.184.0/21 5649 0.1% AS25546 -- BROOKLANDCOMP-AS Brookland Computer Services
14 - 94.124.16.0/21 5424 0.1% AS47640 -- TRICOMPAS Tricomp Sp. z. o. o.
15 - 123.49.152.0/24 5358 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd.
16 - 192.135.176.0/24 5268 0.1% AS14223 -- NYSDOH - New York State Department of Health
17 - 202.92.235.0/24 4899 0.1% AS9498 -- BBIL-AP BHARTI Airtel Ltd.
18 - 123.49.144.0/21 4804 0.1% AS18118 -- CITICNET-AP CITIC Networks Management Co.,Ltd.
19 - 205.104.240.0/20 4701 0.1% AS5237 -- DODNIC - DoD Network Information Center
AS5839 -- DDN-ASNBLK - DoD Network Information Center
20 - 81.199.18.0/24 4418 0.1% AS21491 -- UTL-ON-LINE UTL On-line is RF broadband ISP in Uganda - Africa
Details at http://bgpupdates.potaroo.net