The Cidr Report
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Date: Fri, 18 Feb 2005 22:00:00 +1100 (EST)
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Cc: , , , , ,
This report has been generated at Fri Feb 18 21:44:32 2005 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
11-02-05 154341 104239
12-02-05 151889 104225
13-02-05 151910 104234
14-02-05 151896 104250
15-02-05 152013 104373
16-02-05 152053 104256
17-02-05 151806 104586
18-02-05 152286 104607
AS Summary
18888 Number of ASes in routing system
7728 Number of ASes announcing only one prefix
1443 Largest number of prefixes announced by an AS
AS7018 : ATTW AT&T WorldNet Services
90784256 Largest address span announced by an AS (/32s)
AS721 : DNIC DoD Network Information Center
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').
--- 18Feb05 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 152569 104699 47870 31.4% All ASes
AS4323 1024 222 802 78.3% TWTC Time Warner Telecom
AS18566 767 7 760 99.1% CVAD Covad Communications
AS4134 870 205 665 76.4% CHINANET-BACKBONE
No.31,Jin-rong Street
AS721 1152 582 570 49.5% DNIC DoD Network Information
Center
AS22773 472 26 446 94.5% CXA Cox Communications Inc.
AS27364 464 34 430 92.7% ARMC Armstrong Cable Services
AS7018 1443 1023 420 29.1% ATTW AT&T WorldNet Services
AS6197 861 458 403 46.8% BNS-14 BellSouth Network
Solutions, Inc
AS3602 495 136 359 72.5% SPCA Sprint Canada Inc.
AS6478 499 187 312 62.5% ATTW AT&T WorldNet Services
AS17676 396 88 308 77.8% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS9929 340 36 304 89.4% CNCNET-CN China Netcom Corp.
AS4766 575 283 292 50.8% KIXS-AS-KR Korea Telecom
AS1239 948 662 286 30.2% SPRN Sprint
AS14654 259 6 253 97.7% WAYPOR-3 Wayport
AS9443 378 126 252 66.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS6140 382 138 244 63.9% IMPSA ImpSat
AS7545 499 260 239 47.9% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS4355 293 62 231 78.8% ERSD EARTHLINK, INC
AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate,
Meagher & Flom LLP
AS6198 451 226 225 49.9% BNS-14 BellSouth Network
Solutions, Inc
AS15270 249 35 214 85.9% PDP-14 PaeTec.net -a division
of PaeTecCommunications, Inc.
AS22909 420 218 202 48.1% CMCS Comcast Cable
Communications, Inc.
AS2386 821 620 201 24.5% ADCS-1 AT&T Data
Communications Services
AS5668 450 255 195 43.3% CIH-12 CenturyTel Internet
Holdings, Inc.
AS6517 306 120 186 60.8% YIPS Yipes Communications,
Inc.
AS9498 238 54 184 77.3% BBIL-AP BHARTI BT INTERNET
LTD.
AS19632 191 8 183 95.8% Metropolis Intercom
AS6167 260 78 182 70.0% CELLCO Cellco Partnership
AS16852 240 64 176 73.3% FDCI Focal Data Communications
of Illinois
Total 15987 6235 9752 61.0% Top 30 total
Possible Bogus Routes
24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd.
24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services
24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC
24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services
64.17.32.0/24 AS5024 BRIDGE-75 BridgeNet, LC
64.17.33.0/24 AS5024 BRIDGE-75 BridgeNet, LC
64.17.37.0/24 AS5024 BRIDGE-75 BridgeNet, LC
64.57.160.0/19 AS3561 SAVVI-3 Savvis
64.92.128.0/19 AS3561 SAVVI-3 Savvis
64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services
64.209.192.0/18 AS3561 SAVVI-3 Savvis
69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications
192.30.93.0/24 AS17757 HPAUS-AP HP Australia
192.30.94.0/24 AS17757 HPAUS-AP HP Australia
192.30.127.0/24 AS719 ELISA-AS Elisa Oyj
192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe
192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft
192.70.164.0/24 AS11814 IGST Information Gateway Services - Toronto
192.81.182.0/24 AS719 ELISA-AS Elisa Oyj
192.81.183.0/24 AS719 ELISA-AS Elisa Oyj
192.81.184.0/24 AS719 ELISA-AS Elisa Oyj
192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration
192.124.252.0/22 AS680 DFN-IP service G-WiN
192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System
192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services
192.153.144.0/21 AS721 DNIC DoD Network Information Center
192.172.0.0/19 AS721 DNIC DoD Network Information Center
192.188.208.0/20 AS721 DNIC DoD Network Information Center
192.200.100.0/24 AS7018 ATTW AT&T WorldNet Services
196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L
198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc.
198.97.72.0/21 AS721 DNIC DoD Network Information Center
198.97.80.0/20 AS721 DNIC DoD Network Information Center
198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center
198.97.240.0/20 AS721 DNIC DoD Network Information Center
198.97.247.0/24 AS3475 DEPART-52 Department of the Navy
198.101.4.0/22 AS721 DNIC DoD Network Information Center
198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners
198.144.32.0/19 AS3998 CITY CityNet, Inc.
198.160.171.0/24 AS7046 UU UUNET Technologies, Inc.
198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp.
198.163.155.0/24 AS684 MRN Manitoba Regional Network
198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc.
198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream
198.168.0.0/16 AS701 UU UUNET Technologies, Inc.
198.169.0.0/16 AS803 SASK SaskTel
198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc
199.10.0.0/16 AS721 DNIC DoD Network Information Center
199.60.0.0/20 AS271 UBC-3 University of British Columbia
199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc.
199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc.
199.114.0.0/21 AS721 DNIC DoD Network Information Center
199.114.128.0/18 AS721 DNIC DoD Network Information Center
199.114.130.0/24 AS721 DNIC DoD Network Information Center
199.114.132.0/24 AS721 DNIC DoD Network Information Center
199.114.134.0/24 AS3541 DISAUN DISA/UNRRA
199.114.136.0/24 AS27044 DNIC DoD Network Information Center
199.114.138.0/24 AS721 DNIC DoD Network Information Center
199.114.140.0/24 AS3544 DISAUN DISA/UNRRA
199.114.142.0/24 AS721 DNIC DoD Network Information Center
199.114.144.0/24 AS721 DNIC DoD Network Information Center
199.114.148.0/24 AS721 DNIC DoD Network Information Center
199.114.150.0/24 AS721 DNIC DoD Network Information Center
199.114.152.0/24 AS27033 DNIC DoD Network Information Center
199.114.154.0/24 AS1733 ADP-41 AF DDN PMO
199.114.156.0/24 AS27034 DNIC DoD Network Information Center
199.114.160.0/24 AS1733 ADP-41 AF DDN PMO
199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC.
199.121.0.0/16 AS721 DNIC DoD Network Information Center
199.123.0.0/18 AS721 DNIC DoD Network Information Center
199.123.16.0/20 AS721 DNIC DoD Network Information Center
199.123.80.0/21 AS721 DNIC DoD Network Information Center
199.189.32.0/19 AS7332 IQUEST IQuest Internet
199.202.0.0/16 AS701 UU UUNET Technologies, Inc.
201.239.0.0/16 AS22047 VTR BANDA ANCHA S.A.
202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom
202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange
203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited
203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet)
203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet
203.170.14.0/23 AS6648 ASN-SKYINTERNET BAYANTEL-SKY INTERNET TIER 1 ISP in the Philippines
203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications
204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc.
204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc.
204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc.
204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc.
205.150.0.0/15 AS701 UU UUNET Technologies, Inc.
206.108.96.0/19 AS577 BAC-14 Bell Advanced Communications Inc.
206.128.104.0/21 AS11709 VIIN VIRTUAL INTERACTIVE CENTER
206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ)
206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream
207.231.96.0/19 AS11194 NUNETI NuNet Inc
208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC
208.138.48.0/20 AS7955 SOURCE-48 SourceNet Corporation
209.27.51.0/24 AS14132 INTERN-582 Internet Gateway Inc.
209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.81.0/24 AS15066 SkyNet de Colombia S.A.
209.205.82.0/24 AS15066 SkyNet de Colombia S.A.
209.205.84.0/24 AS15066 SkyNet de Colombia S.A.
209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services
209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc
216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network
216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services
216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services
216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services
216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services
216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services
216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services
216.145.184.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.185.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.186.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.187.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.188.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.189.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.190.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.191.0/24 AS10758 INWAVE INWave Internet, Inc
216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services
216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications
216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications
216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications
216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications
216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications
216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications
216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications
216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications
Please see http://www.cidr-report.org for the full report
------------------------------------
Copies of this report are mailed to:
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eof-list@localhost
apops@localhost
routing-wg@localhost
afnog@localhost
swinog@localhost