This report has been generated at Fri May 25 21:12:42 2012 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
18-05-12 411873 241478
19-05-12 412420 241334
20-05-12 412517 241446
21-05-12 412631 241800
22-05-12 412894 241768
23-05-12 413168 241938
24-05-12 414410 242074
25-05-12 414357 242162
AS Summary
41237 Number of ASes in routing system
17219 Number of ASes announcing only one prefix
3412 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
112706272 Largest address span announced by an AS (/32s)
AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
--- 25May12 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 414515 242089 172426 41.6% All ASes
AS6389 3412 195 3217 94.3% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS7029 3375 1862 1513 44.8% WINDSTREAM - Windstream
Communications Inc
AS22773 1608 135 1473 91.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4766 2641 1174 1467 55.5% KIXS-AS-KR Korea Telecom
AS18566 2093 706 1387 66.3% COVAD - Covad Communications
Co.
AS28573 1891 518 1373 72.6% NET Servicos de Comunicao S.A.
AS2118 1312 14 1298 98.9% RELCOM-AS OOO "NPO Relcom"
AS4323 1568 382 1186 75.6% TWTC - tw telecom holdings,
inc.
AS1785 1908 809 1099 57.6% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1577 537 1040 65.9% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS7303 1435 448 987 68.8% Telecom Argentina S.A.
AS10620 1917 938 979 51.1% Telmex Colombia S.A.
AS7552 1173 217 956 81.5% VIETEL-AS-AP Vietel
Corporation
AS26615 901 32 869 96.4% Tim Celular S.A.
AS8151 1486 680 806 54.2% Uninet S.A. de C.V.
AS18101 949 159 790 83.2% RELIANCE-COMMUNICATIONS-IN
Reliance Communications
Ltd.DAKC MUMBAI
AS17974 1925 1168 757 39.3% TELKOMNET-AS2-AP PT
Telekomunikasi Indonesia
AS4808 1105 349 756 68.4% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS9394 836 152 684 81.8% CRNET CHINA RAILWAY
Internet(CRNET)
AS13977 773 123 650 84.1% CTELCO - FAIRPOINT
COMMUNICATIONS, INC.
AS3356 1097 462 635 57.9% LEVEL3 Level 3 Communications
AS17676 692 75 617 89.2% GIGAINFRA Softbank BB Corp.
AS30036 1402 788 614 43.8% MEDIACOM-ENTERPRISE-BUSINESS -
Mediacom Communications Corp
AS22561 1020 419 601 58.9% DIGITAL-TELEPORT - Digital
Teleport Inc.
AS19262 996 399 597 59.9% VZGNI-TRANSIT - Verizon Online
LLC
AS8452 1368 779 589 43.1% TE-AS TE-AS
AS24560 1027 449 578 56.3% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS3549 1004 445 559 55.7% GBLX Global Crossing Ltd.
AS22047 582 31 551 94.7% VTR BANDA ANCHA S.A.
AS4780 832 284 548 65.9% SEEDNET Digital United Inc.
Total 43905 14729 29176 66.5% Top 30 total
Possible Bogus Routes
5.45.32.0/20 AS58202
5.45.32.0/21 AS58202
5.45.32.0/22 AS58202
5.45.32.0/23 AS58202
5.45.34.0/23 AS58202
5.45.36.0/22 AS58202
5.45.36.0/23 AS58202
5.45.38.0/23 AS58202
5.45.40.0/21 AS58202
5.45.40.0/22 AS58202
5.45.40.0/23 AS58202
5.45.42.0/23 AS58202
5.45.44.0/22 AS58202
5.45.44.0/23 AS58202
5.45.46.0/23 AS58202
10.86.64.32/30 AS65530 -Private Use AS-
10.86.64.36/30 AS65530 -Private Use AS-
10.86.65.32/30 AS65530 -Private Use AS-
10.86.65.36/30 AS65530 -Private Use AS-
10.255.255.0/30 AS65530 -Private Use AS-
10.255.255.4/30 AS65530 -Private Use AS-
10.255.255.8/30 AS65530 -Private Use AS-
14.192.0.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
14.192.4.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
14.192.8.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
14.192.12.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
14.192.16.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
14.192.20.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
14.192.24.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
14.192.28.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg
27.112.114.0/24 AS23884 PROENNET-AS Proimage Engineering and Communication Co.,Ltd.
41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited
62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV
62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV
66.171.32.0/20 AS705 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION
66.207.32.0/20 AS23011
66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC
66.251.128.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks
66.251.133.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks
66.251.134.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks
66.251.136.0/21 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks
66.251.140.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks
66.251.141.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks
66.251.142.0/24 AS33227 BLUEBRIDGE-NETWORKS - Blue Bridge Networks
66.251.143.0/24 AS3356 LEVEL3 Level 3 Communications
69.46.224.0/20 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers
69.46.233.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers
69.46.236.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers
71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A.
72.44.16.0/20 AS15054 HAMELTRONICS - Hameltronics, LLC
74.91.48.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.49.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.50.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.51.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.52.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.53.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.54.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.55.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.56.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.57.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.58.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.59.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.60.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.61.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.62.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
74.91.63.0/24 AS30137 SEA-BROADBAND - Sea Broadband, LLC
91.239.220.0/22 AS51445 DUMICONET Dumcon Intermed SRL
91.239.224.0/23 AS51445 DUMICONET Dumcon Intermed SRL
91.239.226.0/24 AS51445 DUMICONET Dumcon Intermed SRL
98.159.96.0/20 AS46975
110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas S.A.
116.206.72.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
116.206.85.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
116.206.103.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
120.136.17.0/24 AS38779 BMG-AS-ID Badan Meteorologi dan Geofisika
121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
142.54.0.0/19 AS23498 CDSI - Cogeco Data Services LP
172.14.0.0/24 AS57871 ASTELECENTR TeleCentr Ltd.
172.15.0.0/24 AS57871 ASTELECENTR TeleCentr Ltd.
172.45.1.0/24 AS3356 LEVEL3 Level 3 Communications
172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group)
172.223.60.0/22 AS6910 DIALTELECOMRO Dial Telecom S.R.L.
200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC.
200.24.73.0/24 AS26061 Equant Colombia
200.33.40.0/24 AS11172 Alestra, S. de R.L. de C.V.
200.34.0.0/20 AS6342 Instituto Tecnol�gico y de Estudios Superiores de Monterrey
200.53.0.0/19 AS13878 Diveo do Brasil Telecomunicacoes Ltda
202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000
202.8.106.0/24 AS9530 SHINSEGAE-AS SHINSEGAE I&C Co., Ltd.
202.58.113.0/24 AS19161
202.83.120.0/21 AS37972
202.83.124.0/24 AS37972
202.83.125.0/24 AS37972
202.83.126.0/24 AS37972
202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network
202.122.134.0/24 AS38615
202.140.128.0/19 AS9583 SIFY-AS-IN Sify Limited
202.160.152.0/22 AS10113 EFTEL-AS-AP Eftel Limited.
202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd.
202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia
202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited
203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
203.142.219.0/24 AS45149
205.175.214.0/24 AS5583 ORANGE-BUSINESS-SERVICES-BENELUX France Telecom S.A.
206.123.129.0/24 AS10790 INREACH-AS - InReach Internet
206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company
207.174.131.0/24 AS26116 INDRA - Indra's Net Inc
207.174.132.0/23 AS26116 INDRA - Indra's Net Inc
207.174.152.0/23 AS26116 INDRA - Indra's Net Inc
207.174.154.0/24 AS26116 INDRA - Indra's Net Inc
207.174.155.0/24 AS26116 INDRA - Indra's Net Inc
207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc.
207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC
207.231.96.0/19 AS11194 NUNETPA - NuNet Inc.
208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC
208.91.56.0/21 AS22241 IC2NET - IC2NET
208.91.56.0/24 AS22241 IC2NET - IC2NET
208.91.57.0/24 AS22241 IC2NET - IC2NET
208.91.58.0/24 AS22241 IC2NET - IC2NET
208.91.59.0/24 AS22241 IC2NET - IC2NET
208.91.60.0/24 AS22241 IC2NET - IC2NET
208.91.61.0/24 AS22241 IC2NET - IC2NET
208.91.62.0/24 AS22241 IC2NET - IC2NET
208.91.63.0/24 AS22241 IC2NET - IC2NET
209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications
209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network
209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC
216.12.160.0/20 AS26627 AS-PILOSOFT - Pilosoft, Inc.
216.21.160.0/20 AS27876 American Data Networks
216.194.160.0/20 AS27876 American Data Networks
Please see http://www.cidr-report.org for the full report