This report has been generated at Fri Aug 19 21:12:10 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
12-08-11 370369 218537
13-08-11 370682 218804
14-08-11 370852 218612
15-08-11 370639 219040
16-08-11 370764 218957
17-08-11 371210 219345
18-08-11 371303 219088
19-08-11 371450 219080
AS Summary
38646 Number of ASes in routing system
16292 Number of ASes announcing only one prefix
3584 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
109714912 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').
--- 19Aug11 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 371528 219072 152456 41.0% All ASes
AS6389 3584 231 3353 93.6% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS18566 1912 376 1536 80.3% COVAD - Covad Communications
Co.
AS4766 2498 969 1529 61.2% KIXS-AS-KR Korea Telecom
AS22773 1436 106 1330 92.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4755 1531 223 1308 85.4% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS4323 1618 402 1216 75.2% TWTC - tw telecom holdings,
inc.
AS1785 1822 773 1049 57.6% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS7552 1412 391 1021 72.3% VIETEL-AS-AP Vietel
Corporation
AS19262 1405 395 1010 71.9% VZGNI-TRANSIT - Verizon Online
LLC
AS10620 1591 671 920 57.8% Telmex Colombia S.A.
AS28573 1267 380 887 70.0% NET Servicos de Comunicao S.A.
AS7545 1576 712 864 54.8% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS24560 1199 382 817 68.1% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS18101 947 146 801 84.6% RELIANCE-COMMUNICATIONS-IN
Reliance Communications
Ltd.DAKC MUMBAI
AS8151 1406 649 757 53.8% Uninet S.A. de C.V.
AS7303 1063 320 743 69.9% Telecom Argentina S.A.
AS4808 1070 340 730 68.2% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS3356 1112 454 658 59.2% LEVEL3 Level 3 Communications
AS20115 1586 957 629 39.7% CHARTER-NET-HKY-NC - Charter
Communications
AS17488 990 367 623 62.9% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS14420 705 89 616 87.4% CORPORACION NACIONAL DE
TELECOMUNICACIONES - CNT EP
AS22561 967 363 604 62.5% DIGITAL-TELEPORT - Digital
Teleport Inc.
AS17676 673 71 602 89.5% GIGAINFRA Softbank BB Corp.
AS3549 1007 432 575 57.1% GBLX Global Crossing Ltd.
AS4804 643 86 557 86.6% MPX-AS Microplex PTY LTD
AS22047 578 32 546 94.5% VTR BANDA ANCHA S.A.
AS4780 756 219 537 71.0% SEEDNET Digital United Inc.
AS7011 1160 627 533 45.9% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS17974 1822 1300 522 28.6% TELKOMNET-AS2-AP PT
Telekomunikasi Indonesia
AS15475 512 8 504 98.4% NOL
Total 39848 12471 27377 68.7% 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
66.171.32.0/20 AS705 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION
66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
66.207.32.0/20 AS23011
66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC
69.6.80.0/24 AS13442
71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A.
76.77.32.0/19 AS2828 XO-AS15 - XO Communications
80.88.10.0/24 AS33774 DJAWEB
80.88.12.0/24 AS33779 wataniya-telecom-as
93.180.88.0/21 AS42410 PTP-AS Point To Point Ltd.
110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas
115.42.47.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
116.193.152.0/24 AS55536 MIHK-HK Pacswitch Globe Telecom
116.193.153.0/24 AS55536 MIHK-HK Pacswitch Globe Telecom
116.193.154.0/24 AS55536 MIHK-HK Pacswitch Globe Telecom
116.193.155.0/24 AS55536 MIHK-HK Pacswitch Globe Telecom
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.
172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group)
181.82.15.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul
181.82.16.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul
181.82.17.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education
181.82.18.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education
190.102.32.0/20 AS30058 FDCSERVERS - FDCservers.net
190.104.32.0/21 AS27882 Telef�nica Celular de Bolivia S.A.
193.111.87.0/24 AS24812
193.138.6.0/23 AS16150 PORT80-GLOBALTRANSIT Port80
193.192.50.0/23 AS39326 GOSCOMB-AS Goscomb Technologies Limited
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
200.24.76.0/24 AS7195 Telecorp Colombia S.A.
200.24.78.0/26 AS3549 GBLX Global Crossing Ltd.
200.24.78.64/26 AS3549 GBLX Global Crossing Ltd.
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
202.9.55.0/24 AS2764 AAPT AAPT Limited
202.9.57.0/24 AS2764 AAPT AAPT Limited
202.58.113.0/24 AS19161
202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company
202.74.232.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.74.233.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
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
202.133.73.0/24 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
202.179.131.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited
202.179.144.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
203.18.156.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
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
203.175.107.0/24 AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited
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 Orange Business Services (formerly Equant) AS for BENELUX
205.207.148.0/23 AS812 ROGERS-CABLE - Rogers Cable Communications Inc.
206.72.192.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc.
206.72.194.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc.
206.123.129.0/24 AS10790 INREACH-AS - InReach Internet
206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings
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
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
216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc.
216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
Please see http://www.cidr-report.org for the full report