This report has been generated at Fri Dec 16 21:12:27 2011 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
09-12-11 386491 227371
10-12-11 386600 227223
11-12-11 386365 227383
12-12-11 386687 227266
13-12-11 386830 226854
14-12-11 387006 227323
15-12-11 388632 223854
16-12-11 385889 227871
AS Summary
39706 Number of ASes in routing system
16714 Number of ASes announcing only one prefix
3479 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
109169664 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').
--- 16Dec11 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 389158 227932 161226 41.4% All ASes
AS6389 3479 223 3256 93.6% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS18566 2093 412 1681 80.3% COVAD - Covad Communications
Co.
AS4766 2517 994 1523 60.5% KIXS-AS-KR Korea Telecom
AS7029 2958 1525 1433 48.4% WINDSTREAM - Windstream
Communications Inc
AS22773 1513 114 1399 92.5% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4755 1515 213 1302 85.9% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS4323 1622 389 1233 76.0% TWTC - tw telecom holdings,
inc.
AS28573 1577 399 1178 74.7% NET Servicos de Comunicao S.A.
AS1785 1858 785 1073 57.8% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS7552 1491 438 1053 70.6% VIETEL-AS-AP Vietel
Corporation
AS19262 1388 402 986 71.0% VZGNI-TRANSIT - Verizon Online
LLC
AS10620 1717 751 966 56.3% Telmex Colombia S.A.
AS2118 1097 144 953 86.9% RELCOM-AS OOO "NPO Relcom"
AS7303 1247 362 885 71.0% Telecom Argentina S.A.
AS18101 965 158 807 83.6% RELIANCE-COMMUNICATIONS-IN
Reliance Communications
Ltd.DAKC MUMBAI
AS8151 1460 656 804 55.1% Uninet S.A. de C.V.
AS30036 1460 685 775 53.1% MEDIACOM-ENTERPRISE-BUSINESS -
Mediacom Communications Corp
AS4808 1077 335 742 68.9% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS15557 1035 310 725 70.0% LDCOMNET Societe Francaise du
Radiotelephone S.A
AS24560 996 279 717 72.0% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7545 1632 947 685 42.0% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS3356 1105 457 648 58.6% LEVEL3 Level 3 Communications
AS17974 1716 1104 612 35.7% TELKOMNET-AS2-AP PT
Telekomunikasi Indonesia
AS17676 675 74 601 89.0% GIGAINFRA Softbank BB Corp.
AS8402 1446 873 573 39.6% CORBINA-AS OJSC "Vimpelcom"
AS4804 663 95 568 85.7% MPX-AS Microplex PTY LTD
AS20115 1604 1048 556 34.7% CHARTER-NET-HKY-NC - Charter
Communications
AS22561 929 378 551 59.3% DIGITAL-TELEPORT - Digital
Teleport Inc.
AS22047 582 33 549 94.3% VTR BANDA ANCHA S.A.
AS9498 854 306 548 64.2% BBIL-AP BHARTI Airtel Ltd.
Total 44271 14889 29382 66.4% 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-
41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service
62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV
62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV
64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation
64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation
64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation
66.129.0.0/19 AS3901 ARRAKIS - Higher Technology Services
66.175.222.0/23 AS30058 FDCSERVERS - FDCservers.net
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
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.
80.88.10.0/24 AS33774 DJAWEB
98.159.96.0/20 AS46975
110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas
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 AS29571 CITelecom-AS
172.45.2.0/24 AS29571 CITelecom-AS
172.45.3.0/24 AS29571 CITelecom-AS
172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group)
190.104.32.0/21 AS27882 Telef�nica Celular de Bolivia S.A.
200.6.93.0/24 AS6400 Compa��a Dominicana de Tel�fonos, C. por A. - CODETEL
200.6.94.0/24 AS6400 Compa��a Dominicana de Tel�fonos, C. por A. - CODETEL
200.6.95.0/24 AS6400 Compa��a Dominicana de Tel�fonos, C. por A. - CODETEL
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
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.
202.9.55.0/24 AS2764 AAPT AAPT Limited
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
202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited
202.160.152.0/22 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD
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
206.180.240.0/20 AS12083 KNOLOGY-NET - KNOLOGY, Inc.
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.
208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW
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
209.133.224.0/19 AS4323 TWTC - tw telecom holdings, inc.
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
209.222.240.0/22 AS19747
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 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
Please see http://www.cidr-report.org for the full report