This report has been generated at Fri Oct 29 21:44:27 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
22-10-04 147143 100957
23-10-04 147080 101045
24-10-04 147052 101135
25-10-04 146983 101327
26-10-04 146887 101405
27-10-04 146993 101428
28-10-04 147056 101487
29-10-04 147101 101482
AS Summary
18271 Number of ASes in routing system
7448 Number of ASes announcing only one prefix
1412 Largest number of prefixes announced by an AS
AS7018 : ATTW AT&T WorldNet Services
86647552 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').
--- 29Oct04 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 147034 101512 45522 31.0% All ASes
AS18566 750 7 743 99.1% CVAD Covad Communications
AS4134 825 178 647 78.4% CHINANET-BACKBONE
No.31,Jin-rong Street
AS4323 794 220 574 72.3% TWTC Time Warner Telecom
AS7018 1412 981 431 30.5% ATTW AT&T WorldNet Services
AS6197 806 422 384 47.6% BNS-14 BellSouth Network
Solutions, Inc
AS22773 400 18 382 95.5% CXA Cox Communications Inc.
AS27364 413 35 378 91.5% ARMC Armstrong Cable Services
AS22909 408 65 343 84.1% CMCS Comcast Cable
Communications, Inc.
AS701 1227 885 342 27.9% UU UUNET Technologies, Inc.
AS6478 419 94 325 77.6% ATTW AT&T WorldNet Services
AS1239 937 627 310 33.1% SPRN Sprint
AS17676 367 63 304 82.8% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS9929 335 33 302 90.1% CNCNET-CN China Netcom Corp.
AS4355 384 99 285 74.2% ERSD EARTHLINK, INC
AS4766 527 266 261 49.5% KIXS-AS-KR Korea Telecom
AS21502 261 3 258 98.9% ASN-NUMERICABLE NUMERICABLE is
a cabled network in France,
AS14654 261 6 255 97.7% WAYPOR-3 Wayport
AS9443 357 108 249 69.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS6140 368 121 247 67.1% IMPSA ImpSat
AS15557 338 104 234 69.2% LDCOMNET LDCOM NETWORKS
AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate,
Meagher & Flom LLP
AS1221 809 582 227 28.1% ASN-TELSTRA Telstra Pty Ltd
AS2386 843 617 226 26.8% ADCS-1 AT&T Data
Communications Services
AS22291 288 73 215 74.7% CC04 Charter Communications
AS6198 429 219 210 49.0% BNS-14 BellSouth Network
Solutions, Inc
AS721 718 513 205 28.6% DNIC DoD Network Information
Center
AS4814 206 6 200 97.1% CHINA169-BBN CNCGROUP IP
network��China169 Beijing
Broadband Network
AS3356 640 445 195 30.5% LEVEL3 Level 3 Communications
AS5668 407 212 195 47.9% CIH-12 CenturyTel Internet
Holdings, Inc.
AS15270 225 39 186 82.7% PDP-14 PaeTec.net -a division
of PaeTecCommunications, Inc.
Total 16398 7057 9341 57.0% 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
60.248.0.0/16 AS3462 HINET Data Communication Business Group
64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB
64.46.34.0/24 AS29393 CLUEFULCOLO-AS AS for Cluefulcolo.net
64.83.96.0/19 AS26956 NETFR NetFree Communications
64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services
69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications
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
192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe
192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada
192.81.182.0/24 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
192.153.144.0/21 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
192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc.
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.
198.161.87.0/24 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.
202.93.0.0/20 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.
203.170.14.0/23 AS6648 ASN-SKYINTERNET ASs peering of Sky Internet
203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications
204.9.208.0/21 AS33133
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.
206.167.57.0/24 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
207.47.254.0/24 AS701 UU UUNET Technologies, Inc.
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
209.213.48.0/24 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
209.251.0.0/19 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
216.145.130.0/23 AS11937 TRXI TRX Inc.
216.145.132.0/22 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