This report has been generated at Fri Sep 10 21:50:46 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
03-09-04 142564 98111
04-09-04 142671 98023
05-09-04 142645 97946
06-09-04 142493 97997
07-09-04 142498 98214
08-09-04 142814 98395
09-09-04 143221 98358
10-09-04 143329 98574
AS Summary
17936 Number of ASes in routing system
7281 Number of ASes announcing only one prefix
1377 Largest number of prefixes announced by an AS
AS7018 : ATTW AT&T WorldNet Services
86705664 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').
--- 10Sep04 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 143397 98481 44916 31.3% All ASes
AS18566 739 7 732 99.1% CVAD Covad Communications
AS4134 781 172 609 78.0% CHINANET-BACKBONE
No.31,Jin-rong Street
AS4323 778 217 561 72.1% TWTC Time Warner Telecom
AS7018 1377 950 427 31.0% ATTW AT&T WorldNet Services
AS6347 539 116 423 78.5% SAVV SAVVIS Communications
Corporation
AS7843 488 104 384 78.7% ADELPH-13 Adelphia Corp.
AS22773 394 21 373 94.7% CXAB Cox Communications Inc.
Atlanta
AS6467 385 30 355 92.2% ACSI e.spire Communications,
Inc.
AS701 1247 899 348 27.9% UU UUNET Technologies, Inc.
AS9583 530 201 329 62.1% SATYAMNET-AS Satyam Infoway
Ltd.,
AS27364 365 36 329 90.1% ARMC Armstrong Cable Services
AS22909 365 43 322 88.2% CMCS Comcast Cable
Communications, Inc.
AS6197 717 396 321 44.8% BNS-14 BellSouth Network
Solutions, Inc
AS1239 951 636 315 33.1% SPRN Sprint
AS9929 346 34 312 90.2% CNCNET-CN China Netcom Corp.
AS17676 346 43 303 87.6% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS11172 352 51 301 85.5% Alestra
AS6478 357 71 286 80.1% ATTW AT&T WorldNet Services
AS4355 380 99 281 73.9% ERSD EARTHLINK, INC
AS4766 545 266 279 51.2% KIXS-AS-KR Korea Telecom
AS6140 396 125 271 68.4% IMPSA ImpSat
AS21502 268 3 265 98.9% ASN-NUMERICABLE NUMERICABLE is
a cabled network in France,
AS14654 257 6 251 97.7% WAYPOR-3 Wayport
AS9443 359 109 250 69.6% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS2386 826 592 234 28.3% ADCS-1 AT&T Data
Communications Services
AS6198 452 222 230 50.9% BNS-14 BellSouth Network
Solutions, Inc
AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate,
Meagher & Flom LLP
AS721 715 510 205 28.7% DNIC DoD Network Information
Center
AS6327 228 29 199 87.3% SHAWC-2 Shaw Communications
Inc.
AS5668 393 200 193 49.1% CIH-12 CenturyTel Internet
Holdings, Inc.
Total 16120 6204 9916 61.5% 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
64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS
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.
64.83.96.0/19 AS26956 NETFR NetFree Communications
66.54.112.0/24 AS32899
66.54.113.0/24 AS32899
66.54.114.0/24 AS32899
66.54.115.0/24 AS32899
66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc.
69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications
69.54.208.0/20 AS27553 TELNE Telnet Worldwide
69.208.0.0/13 AS7132 SIS-80 SBC Internet Services
69.216.0.0/14 AS7132 SIS-80 SBC Internet Services
69.220.0.0/16 AS7132 SIS-80 SBC Internet Services
132.0.0.0/10 AS721 DNIC DoD Network Information Center
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
192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada
192.80.64.0/19 AS1 LVLT Level 3 Communications, Inc.
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
192.138.208.0/20 AS1 LVLT Level 3 Communications, Inc.
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
192.190.16.0/21 AS1 LVLT Level 3 Communications, Inc.
192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc.
196.1.68.0/24 AS3356 LEVEL3 Level 3 Communications
196.1.104.0/24 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER
196.1.105.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology
196.1.106.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology
196.1.109.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology
196.1.110.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology
196.1.111.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology
196.1.114.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology
196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L
196.3.65.0/24 AS4471 MICA-5 Michigan Internet Cooperative Association
196.12.32.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.33.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.34.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.36.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.37.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.38.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.39.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.40.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.41.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.42.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.43.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.44.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.45.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.46.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.47.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.48.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.49.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.50.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.51.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.52.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.53.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.54.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.55.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.56.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.57.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.58.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.59.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.62.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
196.12.63.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
198.17.1.0/24 AS2513 JPNIC-ASBLOCK-AP JPNIC
198.22.61.0/24 AS9792 CIS-AS-AP Corinthian Internet Services
198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc.
198.48.0.0/22 AS23754 CITYLINK-AS-NZ Citylink
198.51.210.0/24 AS4736 MAGNADATA-AU Magnadata Australia Pty Ltd
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
198.97.208.0/23 AS721 DNIC DoD Network Information Center
198.97.209.0/24 AS1727 RITSC RITSC-PACSW
198.97.240.0/20 AS721 DNIC DoD Network Information Center
198.97.247.0/24 AS3475 DEPART-52 Department of the Navy
198.99.173.0/24 AS703 UNSPECIFIED UUNET
198.101.4.0/22 AS721 DNIC DoD Network Information Center
198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners
198.142.0.0/16 AS4804 MPX-AS Microplex PTY LTD
198.142.0.0/19 AS4804 MPX-AS Microplex PTY LTD
198.142.5.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.12.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.15.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.19.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.32.0/19 AS4804 MPX-AS Microplex PTY LTD
198.142.39.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.40.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.44.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.64.0/19 AS4804 MPX-AS Microplex PTY LTD
198.142.96.0/19 AS4804 MPX-AS Microplex PTY LTD
198.142.98.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.104.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.128.0/19 AS4804 MPX-AS Microplex PTY LTD
198.142.160.0/19 AS4804 MPX-AS Microplex PTY LTD
198.142.176.0/24 AS4804 MPX-AS Microplex PTY LTD
198.142.192.0/19 AS4804 MPX-AS Microplex PTY LTD
198.142.224.0/19 AS4804 MPX-AS Microplex PTY LTD
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 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.
199.114.0.0/18 AS568 DISOUN DISO-UNRRA
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 AS1913 DLA-8 Defense Logistics Agency
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 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
199.197.8.0/22 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
202.70.28.0/24 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
202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus
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)
203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc.
203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc.
203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc.
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.
204.196.0.0/14 AS1 LVLT Level 3 Communications, Inc.
205.150.0.0/15 AS701 UU UUNET Technologies, Inc.
205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications
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
209.143.192.0/18 AS3561 CWU Cable & Wireless USA
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
209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.49.0/24 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
216.14.64.0/20 AS3561 CWU Cable & Wireless USA
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.
216.145.134.0/24 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