RE: The Cidr Report - 4byte ASN handling

15 Sep 2011

      I thought AS-plain notation was the standard for 4-byte ASN's?  Also to cidr report folks, in the web version, clicking on the ASN for these takes you to the page for AS3 (MIT)

46.18.104.0/21    AS3.746 
195.54.52.0/23  	AS3.523  		
195.54.52.0/24  	AS3.523  		
195.54.53.0/24  	AS3.523  

route-views>sh ip bgp 195.54.52.0
BGP routing table entry for 195.54.52.0/24, version 218523
Paths: (34 available, best #34, table Default-IP-Routing-Table)
  Not advertised to any peer
  3257 3356 3255 3.523 3.523 3.523
    89.149.178.10 from 89.149.178.10 (213.200.87.91)
      Origin IGP, metric 10, localpref 100, valid, external
      Community: 3257:8091 3257:30042 3257:50001 3257:54900 3257:54901

-----Original Message-----
From: cidr-report@potaroo.net [mailto:cidr-report@potaroo.net] 
Sent: Friday, September 09, 2011 6:00 PM
To: cidr-report@potaroo.net
Cc: apops@apops.net; afnog@afnog.org; nanog@nanog.org; eof-list@ripe.net; routing-wg@ripe.net
Subject: The Cidr Report

This report has been generated at Fri Sep  9 21:12:28 2011 AEST.
The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table.

Check http://www.cidr-report.org for a current version of this report.

Recent Table History
        Date      Prefixes    CIDR Agg
        02-09-11    373096      219901
        03-09-11    373636      219796
        04-09-11    373666      219877
        05-09-11    373566      219844
        06-09-11    373748      219894
        07-09-11    373965      219992
        08-09-11    373797      219481
        09-09-11    373405      220098

AS Summary
         38831  Number of ASes in routing system
         16392  Number of ASes announcing only one prefix
          3564  Largest number of prefixes announced by an AS
                AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
      108360672  Largest address span announced by an AS (/32s)
                AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street

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').

 --- 09Sep11 ---
ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

Table     374093   219958   154135    41.2%   All ASes

AS6389      3564      229     3335    93.6%   BELLSOUTH-NET-BLK -
                                               BellSouth.net Inc.
AS4766      2508      974     1534    61.2%   KIXS-AS-KR Korea Telecom
AS18566     1912      378     1534    80.2%   COVAD - Covad Communications
                                               Co.
AS22773     1451      108     1343    92.6%   ASN-CXA-ALL-CCI-22773-RDC -
                                               Cox Communications Inc.
AS4755      1547      228     1319    85.3%   TATACOMM-AS TATA
                                               Communications formerly VSNL
                                               is Leading ISP
AS4323      1627      397     1230    75.6%   TWTC - tw telecom holdings,
                                               inc.
AS10620     1661      591     1070    64.4%   Telmex Colombia S.A.
AS1785      1825      778     1047    57.4%   AS-PAETEC-NET - PaeTec
                                               Communications, Inc.
AS19262     1394      400      994    71.3%   VZGNI-TRANSIT - Verizon Online
                                               LLC
AS7552      1415      431      984    69.5%   VIETEL-AS-AP Vietel
                                               Corporation
AS28573     1302      344      958    73.6%   NET Servicos de Comunicao S.A.
AS18101      950      144      806    84.8%   RELIANCE-COMMUNICATIONS-IN
                                               Reliance Communications
                                               Ltd.DAKC MUMBAI
AS24560     1177      386      791    67.2%   AIRTELBROADBAND-AS-AP Bharti
                                               Airtel Ltd., Telemedia
                                               Services
AS8151      1411      659      752    53.3%   Uninet S.A. de C.V.
AS4808      1077      339      738    68.5%   CHINA169-BJ CNCGROUP IP
                                               network China169 Beijing
                                               Province Network
AS7303      1051      316      735    69.9%   Telecom Argentina S.A.
AS7545      1581      860      721    45.6%   TPG-INTERNET-AP TPG Internet
                                               Pty Ltd
AS3356      1103      449      654    59.3%   LEVEL3 Level 3 Communications
AS30036     1327      692      635    47.9%   MEDIACOM-ENTERPRISE-BUSINESS -
                                               Mediacom Communications Corp
AS3549      1080      449      631    58.4%   GBLX Global Crossing Ltd.
AS14420      715       92      623    87.1%   CORPORACION NACIONAL DE
                                               TELECOMUNICACIONES - CNT EP
AS20115     1591      971      620    39.0%   CHARTER-NET-HKY-NC - Charter
                                               Communications
AS22561      973      365      608    62.5%   DIGITAL-TELEPORT - Digital
                                               Teleport Inc.
AS17676      675       70      605    89.6%   GIGAINFRA Softbank BB Corp.
AS17974     1985     1400      585    29.5%   TELKOMNET-AS2-AP PT
                                               Telekomunikasi Indonesia
AS4804       660       87      573    86.8%   MPX-AS Microplex PTY LTD
AS22047      579       31      548    94.6%   VTR BANDA ANCHA S.A.
AS4780       759      230      529    69.7%   SEEDNET Digital United Inc.
AS7011      1183      656      527    44.5%   FRONTIER-AND-CITIZENS -
                                               Frontier Communications of
                                               America, Inc.
AS15475      512        8      504    98.4%   NOL

Total      40595    13062    27533    67.8%   Top 30 total

Possible Bogus Routes

        10.86.64.32/30       AS65530 -Private Use AS-
        10.86.64.36/30       AS65530 -Private Use AS-
        10.86.65.32/30       AS65530 -Private Use AS-
        10.86.65.36/30       AS65530 -Private Use AS-
        10.255.255.0/30      AS65530 -Private Use AS-
        10.255.255.4/30      AS65530 -Private Use AS-
        10.255.255.8/30      AS65530 -Private Use AS-
        41.222.79.0/24       AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited
        41.223.92.0/22       AS36936 CELTEL-GABON Celtel Gabon Internet Service
        46.18.104.0/21       AS3.746 
        62.61.220.0/24       AS24974 TACHYON-EU Tachyon Europe BV
        62.61.221.0/24       AS24974 TACHYON-EU Tachyon Europe BV
        64.21.192.0/20       AS11610 INETNEBR-1 - Internet Nebraska Corporation
        64.21.212.0/22       AS11610 INETNEBR-1 - Internet Nebraska Corporation
        64.21.216.0/21       AS11610 INETNEBR-1 - Internet Nebraska Corporation
        66.171.32.0/20       AS705   UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
        66.180.239.0/24      AS35888 VIGNETTE - VIGNETTE CORPORATION
        66.206.47.0/24       AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
        66.207.32.0/20       AS23011 
        66.245.176.0/20      AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC
        69.6.80.0/24         AS13442 
        71.19.134.0/23       AS3313  INET-AS BT Italia S.p.A.
        76.77.32.0/19        AS2828  XO-AS15 - XO Communications
        80.88.10.0/24        AS33774 DJAWEB
        100.100.100.0/24     AS3549  GBLX Global Crossing Ltd.
        110.34.44.0/22       AS12653 COMTONET KB Impuls Hellas
        116.206.72.0/24      AS6461  MFNX MFN - Metromedia Fiber Network
        116.206.85.0/24      AS6461  MFNX MFN - Metromedia Fiber Network
        116.206.103.0/24     AS6461  MFNX MFN - Metromedia Fiber Network
        117.120.56.0/21      AS4755  TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
        121.46.0.0/16        AS4134  CHINANET-BACKBONE No.31,Jin-rong Street
        142.54.0.0/19        AS23498 CDSI - Cogeco Data Services Inc.
        172.102.0.0/22       AS4812  CHINANET-SH-AP China Telecom (Group)
        181.82.15.0/24       AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul
        181.82.16.0/24       AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul
        181.82.17.0/24       AS38418 SENSD-AS-KR seoul seondong district office of education
        181.82.18.0/24       AS38418 SENSD-AS-KR seoul seondong district office of education
        190.102.32.0/20      AS30058 FDCSERVERS - FDCservers.net
        190.104.32.0/21      AS27882 Telefónica Celular de Bolivia S.A.
        193.111.87.0/24      AS24812 
        200.6.93.0/24        AS6400  Compañía Dominicana de Teléfonos, C. por A. - CODETEL
        200.6.94.0/24        AS6400  Compañía Dominicana de Teléfonos, C. por A. - CODETEL
        200.6.95.0/24        AS6400  Compañía Dominicana de Teléfonos, C. por A. - CODETEL
        200.23.84.0/24       AS8151  Uninet S.A. de C.V.
        200.24.73.0/24       AS26061 Equant Colombia
        200.24.76.0/24       AS7195  Telecorp Colombia S.A.
        200.24.78.0/26       AS3549  GBLX Global Crossing Ltd.
        200.24.78.64/26      AS3549  GBLX Global Crossing Ltd.
        200.33.40.0/24       AS11172 Alestra, S. de R.L. de C.V.
        200.34.0.0/20        AS6342  Instituto Tecnológico y de Estudios Superiores de Monterrey
        200.53.0.0/19        AS13878 Diveo do Brasil Telecomunicacoes Ltda
        202.1.224.0/24       AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000
        202.9.55.0/24        AS2764  AAPT AAPT Limited
        202.9.57.0/24        AS2764  AAPT AAPT Limited
        202.58.113.0/24      AS19161 
        202.61.75.0/24       AS9927  PHILCOMNET-PH A Multihomed ISP Company
        202.74.232.0/24      AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
        202.74.233.0/24      AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
        202.83.120.0/21      AS37972 
        202.83.124.0/24      AS37972 
        202.83.125.0/24      AS37972 
        202.83.126.0/24      AS37972 
        202.94.1.0/24        AS4808  CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network
        202.133.70.0/24      AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited
        202.160.152.0/22     AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD
        202.174.125.0/24     AS9498  BBIL-AP BHARTI Airtel Ltd.
        202.176.1.0/24       AS9942  COMINDICO-AP SOUL Converged Communications Australia
        202.179.131.0/24     AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
        202.179.134.0/24     AS23966 LDN-AS-PK LINKdotNET Telecom Limited
        202.179.144.0/24     AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
        203.23.1.0/24        AS18111 NETSPEED-AS-AP Netspeed Internet Communications
        203.24.38.0/24       AS18111 NETSPEED-AS-AP Netspeed Internet Communications
        203.30.127.0/24      AS18111 NETSPEED-AS-AP Netspeed Internet Communications
        203.32.86.0/23       AS18111 NETSPEED-AS-AP Netspeed Internet Communications
        203.32.86.0/24       AS18111 NETSPEED-AS-AP Netspeed Internet Communications
        203.32.87.0/24       AS18111 NETSPEED-AS-AP Netspeed Internet Communications
        203.32.188.0/24      AS1221  ASN-TELSTRA Telstra Pty Ltd
        203.142.219.0/24     AS45149 
        203.175.107.0/24     AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited
        205.150.0.0/15       AS701   UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
        205.175.214.0/24     AS5583  ORANGE-BUSINESS-SERVICES-BENELUX Orange Business Services (formerly Equant) AS for BENELUX
        205.207.148.0/23     AS812   ROGERS-CABLE - Rogers Cable Communications Inc.
        206.72.192.0/23      AS16526 BIRCH-TELECOM - Birch Telecom, Inc.
        206.72.194.0/23      AS16526 BIRCH-TELECOM - Birch Telecom, Inc.
        206.123.129.0/24     AS10790 INREACH-AS - InReach Internet
        206.180.240.0/20     AS12083 KNOLOGY-NET - Knology Holdings
        206.197.184.0/24     AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company
        207.174.131.0/24     AS26116 INDRA - Indra's Net Inc.
        207.174.132.0/23     AS26116 INDRA - Indra's Net Inc.
        207.174.152.0/23     AS26116 INDRA - Indra's Net Inc.
        207.174.154.0/24     AS26116 INDRA - Indra's Net Inc.
        207.174.155.0/24     AS26116 INDRA - Indra's Net Inc.
        207.174.200.0/24     AS22658 EARTHNET - Earthnet, Inc.
        207.174.248.0/21     AS6653  PRIVATEI - privateI, LLC
        207.231.96.0/19      AS11194 NUNETPA - NuNet Inc.
        208.64.240.0/21      AS13871 TELEBYTE-NW - Telebyte NW
        208.83.53.0/24       AS40569 YGOMI-AS - Ygomi LLC
        209.148.64.0/19      AS13773 TELNETCOMM - Telnet Communications
        209.177.64.0/20      AS6461  MFNX MFN - Metromedia Fiber Network
        209.213.0.0/20       AS33005 ELTOPIA - Eltopia.com, LLC
        210.56.150.0/23      AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED
        216.21.160.0/20      AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
        216.58.200.0/24      AS18530 ISOMEDIA-1 - Isomedia Inc.
        216.194.160.0/20     AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport

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

------------------------------------
Copies of this report are mailed to:
  nanog@nanog.org
  eof-list@ripe.net
  apops@apops.net
  routing-wg@ripe.net
  afnog@afnog.org

RE: The Cidr Report - 4byte ASN handling

Schiller, Heather A