This report has been generated at Fri Apr 20 21:12:51 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
13-04-12 408593 238754
14-04-12 408628 238808
15-04-12 408701 238734
16-04-12 408688 238611
17-04-12 408679 238737
18-04-12 409045 238610
19-04-12 409137 238827
20-04-12 409267 238963
AS Summary
40875 Number of ASes in routing system
17083 Number of ASes announcing only one prefix
3427 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
112041248 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').
--- 20Apr12 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 409399 238997 170402 41.6% All ASes
AS6389 3427 198 3229 94.2% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS7029 3409 1784 1625 47.7% WINDSTREAM - Windstream
Communications Inc
AS4766 2497 1032 1465 58.7% KIXS-AS-KR Korea Telecom
AS22773 1576 120 1456 92.4% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS18566 2091 705 1386 66.3% COVAD - Covad Communications
Co.
AS28573 1785 482 1303 73.0% NET Servicos de Comunicao S.A.
AS2118 1304 14 1290 98.9% RELCOM-AS OOO "NPO Relcom"
AS4323 1603 383 1220 76.1% TWTC - tw telecom holdings,
inc.
AS1785 1905 806 1099 57.7% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1587 543 1044 65.8% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS10620 1810 854 956 52.8% Telmex Colombia S.A.
AS7552 1170 220 950 81.2% VIETEL-AS-AP Vietel
Corporation
AS7303 1363 440 923 67.7% Telecom Argentina S.A.
AS26615 902 32 870 96.5% Tim Celular S.A.
AS8151 1494 668 826 55.3% Uninet S.A. de C.V.
AS18101 947 163 784 82.8% RELIANCE-COMMUNICATIONS-IN
Reliance Communications
Ltd.DAKC MUMBAI
AS17908 826 60 766 92.7% TCISL Tata Communications
AS4808 1105 349 756 68.4% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS9394 894 197 697 78.0% CRNET CHINA RAILWAY
Internet(CRNET)
AS17974 1799 1102 697 38.7% TELKOMNET-AS2-AP PT
Telekomunikasi Indonesia
AS7545 1677 997 680 40.5% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS13977 762 125 637 83.6% CTELCO - FAIRPOINT
COMMUNICATIONS, INC.
AS3356 1097 461 636 58.0% LEVEL3 Level 3 Communications
AS30036 1412 792 620 43.9% MEDIACOM-ENTERPRISE-BUSINESS -
Mediacom Communications Corp
AS17676 688 76 612 89.0% GIGAINFRA Softbank BB Corp.
AS19262 996 401 595 59.7% VZGNI-TRANSIT - Verizon Online
LLC
AS22561 989 406 583 58.9% DIGITAL-TELEPORT - Digital
Teleport Inc.
AS3549 1013 437 576 56.9% GBLX Global Crossing Ltd.
AS24560 1024 453 571 55.8% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4780 826 261 565 68.4% SEEDNET Digital United Inc.
Total 43978 14561 29417 66.9% Top 30 total
Possible Bogus Routes
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 AS14208
74.91.49.0/24 AS14208
74.91.50.0/24 AS14208
74.91.51.0/24 AS14208
74.91.52.0/24 AS14208
74.91.53.0/24 AS14208
74.91.54.0/24 AS14208
74.91.55.0/24 AS14208
74.91.56.0/24 AS14208
74.91.57.0/24 AS14208
74.91.58.0/24 AS14208
74.91.59.0/24 AS14208
74.91.60.0/24 AS14208
74.91.61.0/24 AS14208
74.91.62.0/24 AS14208
74.91.63.0/24 AS14208
91.238.196.0/23 AS24916 ORBITAL-ASN OrbitalNet Ltd
91.238.198.0/24 AS24916 ORBITAL-ASN OrbitalNet Ltd
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
121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc.
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.
193.0.213.0/24 AS9070 ITD ITD Network Bulgarian ISP
200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC.
200.23.84.0/24 AS8151 Uninet S.A. de C.V.
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
201.158.116.0/24 AS28378 TV Rey de Occidente, S.A. de C.V.
201.158.117.0/24 AS28378 TV Rey de Occidente, S.A. de C.V.
201.158.118.0/24 AS28378 TV Rey de Occidente, S.A. de C.V.
201.158.119.0/24 AS28378 TV Rey de Occidente, S.A. de C.V.
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
202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company
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
205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
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
210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED
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