This archive is retained to ensure existing URLs remain functional. It will not contain any emails sent to this mailing list after July 1, 2024. For all messages, including those sent before and after this date, please visit the new location of the archive at https://mailman.ripe.net/archives/list/routing-wg@ripe.net/
The Cidr Report

Next message (by thread): The Cidr Report
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
cidr-report at potaroo.net cidr-report at potaroo.net
Fri Jun 3 14:00:00 CEST 2005
This report has been generated at Fri Jun  3 21:45:02 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
        27-05-05    159418      108678
        28-05-05    159556      108718
        29-05-05    159610      108744
        30-05-05    159668      108869
        31-05-05    159796      108546
        01-06-05    159846      108487
        02-06-05    159978      108483
        03-06-05    159823      108421


AS Summary
         19669  Number of ASes in routing system
          8060  Number of ASes announcing only one prefix
          1472  Largest number of prefixes announced by an AS
                AS7018 : ATT-INTERNET4 - AT&T WorldNet Services
      90565120  Largest address span announced by an AS (/32s)
                AS721  : DLA-ASNBLOCK-AS - 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').

 --- 03Jun05 ---
ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

Table     160001   108451    51550    32.2%   All ASes

AS4323      1117      220      897    80.3%   TWTC - Time Warner Telecom
AS18566      814        8      806    99.0%   COVAD - Covad Communications
AS4134       898      223      675    75.2%   CHINANET-BACKBONE
                                               No.31,Jin-rong Street
AS721       1109      565      544    49.1%   DLA-ASNBLOCK-AS - DoD Network
                                               Information Center
AS27364      564       22      542    96.1%   ACS-INTERNET - Armstrong Cable
                                               Services
AS7018      1472      951      521    35.4%   ATT-INTERNET4 - AT&T WorldNet
                                               Services
AS7725       482       15      467    96.9%   CCH-AS7 - Comcast Cable
                                               Communications Holdings, Inc
AS22773      488       25      463    94.9%   CCINET-2 - Cox Communications
                                               Inc.
AS6197       915      497      418    45.7%   BATI-ATL - BellSouth Network
                                               Solutions, Inc
AS6467       422       34      388    91.9%   ESPIRECOMM - e.spire
                                               Communications, Inc.
AS3602       528      144      384    72.7%   SPRINT-CA-AS - Sprint Canada
                                               Inc.
AS17676      436       80      356    81.7%   JPNIC-JP-ASN-BLOCK Japan
                                               Network Information Center
AS9929       351       48      303    86.3%   CNCNET-CN China Netcom Corp.
AS4766       577      281      296    51.3%   KIXS-AS-KR Korea Telecom
AS9583       755      482      273    36.2%   SIFY-AS-IN Sify Limited
AS14654      269        6      263    97.8%   WAYPORT - Wayport
AS6140       405      150      255    63.0%   IMPSAT-USA - ImpSat
AS9443       374      123      251    67.1%   INTERNETPRIMUS-AS-AP Primus
                                               Telecommunications
AS6478       401      153      248    61.8%   ATT-INTERNET3 - AT&T WorldNet
                                               Services
AS1239       886      647      239    27.0%   SPRINTLINK - Sprint
AS15270      288       50      238    82.6%   AS-PAETEC-NET - PaeTec.net -a
                                               division of
                                               PaeTecCommunications, Inc.
AS23126      258       21      237    91.9%   KMCTELCOM-DIA - KMC Telecom,
                                               Inc.
AS5668       489      254      235    48.1%   AS-5668 - CenturyTel Internet
                                               Holdings, Inc.
AS4755       514      284      230    44.7%   VSNL-AS Videsh Sanchar Nigam
                                               Ltd. Autonomous System
AS9498       308       80      228    74.0%   BBIL-AP BHARTI BT INTERNET
                                               LTD.
AS6198       464      238      226    48.7%   BATI-MIA - BellSouth Network
                                               Solutions, Inc
AS7545       501      275      226    45.1%   TPG-INTERNET-AP TPG Internet
                                               Pty Ltd
AS2386       855      637      218    25.5%   INS-AS - AT&T Data
                                               Communications Services
AS11456      309      100      209    67.6%   NUVOX - NuVox Communications,
                                               Inc.
AS812        225       21      204    90.7%   ROGERS-CABLE - Rogers Cable
                                               Inc.

Total      17474     6634    10840    62.0%   Top 30 total


Possible Bogus Routes

        24.246.0.0/17        AS7018  ATT-INTERNET4 - AT&T WorldNet Services
        24.246.128.0/18      AS7018  ATT-INTERNET4 - AT&T WorldNet Services
        64.9.224.0/19        AS209   ASN-QWEST - Qwest
        64.17.32.0/24        AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
        64.17.33.0/24        AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
        64.17.37.0/24        AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
        64.127.0.0/18        AS7018  ATT-INTERNET4 - AT&T WorldNet Services
        66.37.96.0/20        AS3764  IA-HOU-AS - Internet America, Inc.
        66.164.232.0/24      AS6197  BATI-ATL - BellSouth Network Solutions, Inc
        66.205.206.0/24      AS21510 TRISTAR - Tristar Communications
        172.32.0.0/24        AS7011  CITLINK - Citizens Utilities
        192.30.93.0/24       AS17757 HPAUS-AP HP Australia
        192.30.94.0/24       AS17757 HPAUS-AP HP Australia
        192.40.105.0/24      AS5515  SONERA-GLOBAL-IP Sonera Solution Autonomous System
        192.43.230.0/24      AS7575  AARNET-AS-AP Australian Academic and Reasearch Network (AARNet)
        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      AS25689 NRCNET-AS - National Research Council of Canada
        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   PSCNI-AS - 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  ATT-INTERNET4 - AT&T WorldNet Services
        192.136.53.0/24      AS8346  SONATEL-AS Autonomous System
        192.153.144.0/21     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        192.172.0.0/19       AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        192.188.208.0/20     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        192.200.100.0/24     AS7018  ATT-INTERNET4 - AT&T WorldNet Services
        196.2.95.0/24        AS8668  TELONE-AS TelOne Zimbabwe P/L
        196.3.162.0/24       AS6083  AFRINIC African Network Information Center
        198.23.26.0/24       AS4390  BELLATLANTIC-COM - Bell Atlantic, Inc.
        198.97.72.0/21       AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        198.97.80.0/20       AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        198.97.88.0/24       AS89    NUSC-CSTLNET-AS - Naval Underwater Systems Center
        198.97.240.0/20      AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        198.97.247.0/24      AS3475  LANT-AFLOAT - Department of the Navy
        198.101.4.0/22       AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        198.136.32.0/20      AS19329 MCNET - Martin County Board of County Commissioners
        198.144.32.0/19      AS3998  CITY-NET - CityNet, Inc.
        198.160.171.0/24     AS7046  UUNET-CUSTOMER - UUNET Technologies, Inc.
        198.161.87.0/24      AS6539  GROUPTLCOM - GT Group Telecom Services Corp.
        198.163.155.0/24     AS684   MTSAL-ASN - MTS Allstream Inc.
        198.167.0.0/16       AS7456  INTERHOP - Interhop Network SERVICES Inc.
        198.167.163.0/24     AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
        198.168.0.0/16       AS701   ALTERNET-AS - UUNET Technologies, Inc.
        198.169.0.0/16       AS803   SASKTEL - SaskTel
        198.232.133.0/24     AS23075 SKOTOS-AS - Skotos Tech, Inc
        199.9.128.0/17       AS668   ASN-ASNET-NET-AS - Defense Research and Engineering Network
        199.10.0.0/16        AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.60.0.0/20        AS271   BCNET-AS - University of British Columbia
        199.96.44.0/23       AS19092 360NETWORKS-US - 360Networks (USA) Inc.
        199.96.46.0/24       AS19092 360NETWORKS-US - 360Networks (USA) Inc.
        199.114.0.0/21       AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.128.0/18     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.130.0/24     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.132.0/24     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.134.0/24     AS3541  ITSDN-U4 - DISA/UNRRA
        199.114.136.0/24     AS27044 DDN-ASNBLK1 - DoD Network Information Center
        199.114.138.0/24     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.140.0/24     AS3544  ITSDN-U7 - DISA/UNRRA
        199.114.142.0/24     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.144.0/24     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.148.0/24     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.150.0/24     AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.114.152.0/24     AS27033 DDN-ASNBLK1 - DoD Network Information Center
        199.114.153.0/24     AS27034 DDN-ASNBLK1 - DoD Network Information Center
        199.114.154.0/24     AS1733  CENTAF-SWA - AF DDN PMO
        199.114.160.0/24     AS1733  CENTAF-SWA - AF DDN PMO
        199.120.32.0/19      AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC.
        199.121.0.0/16       AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.123.0.0/18       AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.123.16.0/20      AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.123.80.0/21      AS721   DLA-ASNBLOCK-AS - DoD Network Information Center
        199.189.32.0/19      AS7332  IQUEST-AS - IQuest Internet
        199.202.0.0/16       AS701   ALTERNET-AS - UUNET Technologies, Inc.
        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
        203.99.142.0/24      AS9826  ILINK-HK-AP iLink.net Ltd
        203.210.69.0/24      AS17536 PRODIGY-AS-AP Prodidgy Telecommunications
        204.48.118.0/23      AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
        204.48.119.0/24      AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
        204.154.125.0/24     AS3952  TELLABS-ASN - TELLABS Operations, Inc.
        204.154.126.0/24     AS3952  TELLABS-ASN - TELLABS Operations, Inc.
        204.154.127.0/24     AS3952  TELLABS-ASN - TELLABS Operations, Inc.
        204.194.110.0/23     AS30653 EXOBIT - Exobit Networks Inc.
        205.150.0.0/15       AS701   ALTERNET-AS - UUNET Technologies, Inc.
        206.108.96.0/19      AS577   BACOM - Bell Advanced Communications Inc.
        206.128.104.0/21     AS11709 VIC - VIRTUAL INTERACTIVE CENTER
        206.167.57.0/24      AS376   RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ)
        206.191.64.0/18      AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
        206.191.96.0/19      AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
        207.231.96.0/19      AS11194 NUNETPA - NuNet Inc
        208.53.224.0/19      AS13576 SDNET - SOUTH DAKOTA NETWORK
        208.138.48.0/20      AS6971  ATG-1 - Advanced Telcom Group, Inc
        209.40.208.0/21      AS16592 Cybernet El Salvador
        209.40.216.0/21      AS16592 Cybernet El Salvador
        209.44.124.0/24      AS22241 ICCEPTS - Integrated Communications Concepts
        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 INTERPAC - Inter-Pacific Network Services
        209.222.137.0/24     AS27429 TIL - Telesat International Ltd.
        209.251.0.0/19       AS11036 SISCOM - SISCOM, Inc
        216.37.110.0/23      AS4264  CERNET-ASN-BLOCK - California Education and Research Federation Network
        216.96.128.0/18      AS7018  ATT-INTERNET4 - AT&T WorldNet Services
        216.145.200.0/21     AS20304 JVLNET - JVLNET Internet Services
        216.171.96.0/20      AS3356  LEVEL3 Level 3 Communications
        216.178.37.0/24      AS3356  LEVEL3 Level 3 Communications
        216.178.39.0/24      AS3356  LEVEL3 Level 3 Communications
        216.178.42.0/24      AS3356  LEVEL3 Level 3 Communications
        216.178.43.0/24      AS3356  LEVEL3 Level 3 Communications
        216.228.64.0/21      AS6295  WHIDBEY1 - Whidbey Internet Services


Please see http://www.cidr-report.org for the full report

------------------------------------
Copies of this report are mailed to:
  nanog at merit.edu
  eof-list at ripe.net
  apops at apops.net
  routing-wg at ripe.net
  afnog at afnog.org
  swinog at swinog.ch
Next message (by thread): The Cidr Report
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
[ routing-wg Archives ]