This report has been generated at Fri Jul 9 21:43:38 2004 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
02-07-04 138157 95253
03-07-04 137906 95421
04-07-04 138230 95430
05-07-04 138351 95418
06-07-04 138246 95439
07-07-04 138312 95533
08-07-04 138436 95569
09-07-04 138898 95503
AS Summary
17473 Number of ASes in routing system
7117 Number of ASes announcing only one prefix
1414 Largest number of prefixes announced by an AS
AS7018 : ATTW AT&T WorldNet Services
54247168 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').
--- 09Jul04 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 138776 95525 43251 31.2% All ASes
AS6347 975 201 774 79.4% SAVV SAVVIS Communications
Corporation
AS18566 725 8 717 98.9% CVAD Covad Communications
AS4134 754 160 594 78.8% CHINANET-BACKBONE
No.31,Jin-rong Street
AS4323 737 206 531 72.0% TWTC Time Warner Telecom
AS7018 1414 971 443 31.3% ATTW AT&T WorldNet Services
AS2548 548 130 418 76.3% ATCW Allegiance Telecom
Companies Worldwide
AS7843 515 130 385 74.8% ADELPH-13 Adelphia Corp.
AS6197 707 326 381 53.9% BNS-14 BellSouth Network
Solutions, Inc
AS22909 398 30 368 92.5% CMCS Comcast Cable
Communications, Inc.
AS701 1282 923 359 28.0% UU UUNET Technologies, Inc.
AS9583 486 136 350 72.0% SATYAMNET-AS Satyam Infoway
Ltd.,
AS27364 377 38 339 89.9% ARMC Armstrong Cable Services
AS22773 383 60 323 84.3% CXAB Cox Communications Inc.
Atlanta
AS1239 945 637 308 32.6% SPRN Sprint
AS6467 334 33 301 90.1% ACSI e.spire Communications,
Inc.
AS11172 351 55 296 84.3% Servicios Alestra S.A de C.V
AS17676 339 50 289 85.3% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS9929 320 32 288 90.0% CNCNET-CN China Netcom Corp.
AS6198 508 223 285 56.1% BNS-14 BellSouth Network
Solutions, Inc
AS4355 381 99 282 74.0% ERSD EARTHLINK, INC
AS6478 328 57 271 82.6% ATTW AT&T WorldNet Services
AS14654 238 5 233 97.9% WAYPOR-3 Wayport
AS25844 243 16 227 93.4% SASMFL-2 Skadden, Arps, Slate,
Meagher & Flom LLP
AS4766 486 265 221 45.5% KIXS-AS-KR Korea Telecom
AS3356 890 672 218 24.5% LEVEL3 Level 3 Communications
AS6140 369 157 212 57.5% IMPSA ImpSat
AS9443 349 143 206 59.0% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS6327 231 32 199 86.1% SHAWC-2 Shaw Communications
Inc.
AS5668 380 196 184 48.4% CIH-12 CenturyTel Internet
Holdings, Inc.
AS2386 406 227 179 44.1% ADCS-1 AT&T Data
Communications Services
Total 16399 6218 10181 62.1% 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
24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services
64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS
64.46.12.0/24 AS7850 IHIGHW iHighway.net, Inc.
64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB
64.46.34.0/24 AS3408
64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc.
66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc.
69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications
132.0.0.0/10 AS568 DISOUN DISO-UNRRA
137.0.0.0/13 AS721 DNIC DoD Network Information Center
138.136.0.0/13 AS721 DNIC DoD Network Information Center
158.0.0.0/13 AS721 DNIC DoD Network Information Center
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 LANLINK Elisa Oyj
192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network
192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe
192.81.182.0/24 AS719 LANLINK Elisa Oyj
192.81.183.0/24 AS719 LANLINK Elisa Oyj
192.81.184.0/24 AS719 LANLINK 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
192.136.71.0/24 AS719 LANLINK Elisa Oyj
192.136.79.0/24 AS719 LANLINK Elisa Oyj
192.153.144.0/21 AS721 DNIC DoD Network Information Center
192.172.0.0/19 AS568 DISOUN DISO-UNRRA
192.188.208.0/20 AS721 DNIC DoD Network Information Center
192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc.
198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc.
198.97.72.0/21 AS568 DISOUN DISO-UNRRA
198.97.80.0/20 AS568 DISOUN DISO-UNRRA
198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center
198.97.240.0/20 AS568 DISOUN DISO-UNRRA
198.97.247.0/24 AS3475 DEPART-52 Department of the Navy
198.101.4.0/22 AS568 DISOUN DISO-UNRRA
198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners
198.144.32.0/19 AS3998 CITY CityNet, Inc.
198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp.
198.161.165.0/24 AS852 AGTA Telus Advanced Communications
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 AS568 DISOUN DISO-UNRRA
199.60.0.0/20 AS271 UBC-3 University of British Columbia
199.114.0.0/18 AS568 DISOUN DISO-UNRRA
199.114.0.0/21 AS568 DISOUN DISO-UNRRA
199.114.128.0/18 AS568 DISOUN DISO-UNRRA
199.114.130.0/24 AS721 DNIC DoD Network Information Center
199.114.132.0/24 AS721 DNIC DoD Network Information Center
199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency
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 AS1913 DLA-8 Defense Logistics Agency
199.114.154.0/24 AS1733 ADP-41 AF DDN PMO
199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency
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 AS568 DISOUN DISO-UNRRA
199.123.0.0/18 AS568 DISOUN DISO-UNRRA
199.123.16.0/20 AS568 DISOUN DISO-UNRRA
199.123.80.0/21 AS568 DISOUN DISO-UNRRA
199.189.32.0/19 AS7332 IQUEST IQuest Internet
199.197.8.0/22 AS21814 PARSON-18 Parsons Corp.
199.202.0.0/16 AS701 UU UUNET Technologies, Inc.
202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES
202.56.160.0/20 AS10199 DISHNET-AS-AP DishnetDSL Limited
202.70.0.0/20 AS4658 NETFRONT-AS NETFRONT I.T. LIMITED (HONG KONG)
202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd.
202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
202.81.96.0/19 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD
202.81.109.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited
202.81.121.0/24 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD
202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
202.123.96.0/20 AS9288 COMCEN-AS-AP Com-Cen Pty Ltd
202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus
202.136.128.0/20 AS10199 DISHNET-AS-AP DishnetDSL Limited
202.141.160.0/24 AS9237 HUTCHCA-AS BTN Access Limited
202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange
203.32.4.0/23 AS7617
203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet)
203.84.145.0/24 AS4637 REACH Reach Network Border AS
203.84.146.0/24 AS4637 REACH Reach Network Border AS
203.188.16.0/21 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System
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.
205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications
206.81.187.0/24 AS19194 SNL-8 Sentris Network LLC
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
206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd.
206.253.190.0/23 AS8123 POLYBA Polybase
207.231.96.0/19 AS11194 NUNETI NuNet Inc
208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC
209.172.0.0/18 AS7770 TRTI Triton Technologies, 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
209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.56.0/24 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
216.145.130.0/24 AS11937 TRXI TRX Inc.
216.145.132.0/24 AS11937 TRXI TRX Inc.
216.145.133.0/24 AS11937 TRXI TRX Inc.
216.145.134.0/24 AS11937 TRXI TRX Inc.
216.145.135.0/24 AS11937 TRXI TRX Inc.
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
216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc
216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services
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