Home    BGP Reports    CIDR Reports   IPv4 Reports   IPv6 Reports    IETF Docs  

Geoff Huston

Comments to: cidr-reports@potaroo.net


IPv6 CIDR REPORT for 4 Feb 12

Report Sections:

This report is generated from an analysis of the BGP routing table within AS2.0 (APNIC), and was produced at Sat Feb 4 03:45:41 2012 AEST.

Status Summary

Table History


        Date      Prefixes    CIDR Agg
        28-01-12      7805        6837
        29-01-12      7828        6838
        30-01-12      7828        6851
        31-01-12      7856        6862
        01-02-12      7867        6869
        02-02-12      7876        6870
        03-02-12      7866        6873
        04-02-12      7877        6873

 

AS Summary


          5108  Number of ASes in routing system
          4071  Number of ASes announcing only one prefix
            97  Largest number of prefixes announced by an AS
                AS20940: AKAMAI-ASN1 Akamai Technologies European AS
      35188667121664 (/19.00) Largest address span announced by an AS (/64s)
                AS5511 : OPENTRANSIT France Telecom S.A.

Aggregation Summary


The algorithm used in this report proposes aggregation only when there is a precise match using AS path so as to preserve traffic transit policies. 

         --- 04Feb12 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table       7874     6876      998    12.7%   All ASes

        AS17451       37        2       35    94.6%   BIZNET-AS-AP BIZNET ISP
        AS703         34       14       20    58.8%   UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
        AS17832       30       11       19    63.3%   SIXNGIX-AS-KR Korea Internet Security Agency
        AS33517       27        9       18    66.7%   DYNDNS - Dynamic Network Services, Inc.
        AS6830        24        8       16    66.7%   UPC UPC Broadband
        AS9121        17        1       16    94.1%   TTNET Turk Telekomunikasyon Anonim Sirketi
        AS71          17        2       15    88.2%   HP-INTERNET-AS Hewlett-Packard Company
        AS7303        21        6       15    71.4%   Telecom Argentina S.A.
        AS30688       17        2       15    88.2%   FASTTRACK-NET-AS - FastTrack Communications Inc.
        AS42          28       14       14    50.0%   PCH PCH
        AS24183       12        1       11    91.7%   DTS-ISP-CORE1-AP DTS LTD
        AS25973       14        3       11    78.6%   GTT Global Telecom & Technology ASN
        AS31985       12        1       11    91.7%   KCNAP-PRI-ASN - KC NAP, LLC
        AS2576        25       15       10    40.0%   DOT-AS - U. S. Department of Transportation
        AS20940       97       87       10    10.3%   AKAMAI-ASN1 Akamai Technologies European AS
        AS23756       11        1       10    90.9%   PADINET-AS-ID PADINET - Padi Internet
        AS31793       12        2       10    83.3%   BROADSTAR - Primecast
        AS4802        10        1        9    90.0%   ASN-IINET iiNet Limited
        AS6402        10        1        9    90.0%   NFRAME - nFrame
        AS8781        10        1        9    90.0%   QA-ISP Qatar Telecom (Qtel) Q.S.C.
        AS19271       13        4        9    69.2%   PEAK10 - Peak 10
        AS36351       12        3        9    75.0%   SOFTLAYER - SoftLayer Technologies Inc.
        AS37944       21       12        9    42.9%   CNNIC-CSTNET-AP CHINA SCIENCE AND TECHNOLOGY NETWORK
        AS38148       10        1        9    90.0%   QIANDRA-AS-ID QIANDRA INFORMATION TECHNOLOGY PT
        AS40009       12        3        9    75.0%   BITGRAVITY - BitGravity, Inc.
        AS3491        10        2        8    80.0%   BTN-ASN - Beyond The Network America, Inc.
        AS4657        10        2        8    80.0%   STARHUBINTERNET-AS StarHub Internet Exchange
        AS7587         9        1        8    88.9%   ACCESSNETWORKS DA-NET::Data:Digital:Dialing:ACCESSNET::ID
        AS19945        9        1        8    88.9%   GRANBURYISD - Granbury Independent School District
        AS30058       12        4        8    66.7%   FDCSERVERS - FDCservers.net

        Total        583      215      368    63.1%   Top 30 total




        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
              97 AS20940 AKAMAI-ASN1 Akamai Technologies European AS
              40 AS22394 CELLCO - Cellco Partnership DBA Verizon Wireless
              38 AS12041 AFILIAS-NST Afilias Limited
              37 AS17451 BIZNET-AS-AP BIZNET ISP
              34 AS703   UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
              32 AS1237  KREONET-AS-KR Korea Institute of Science and Technology Information
              30 AS17832 SIXNGIX-AS-KR Korea Internet Security Agency
              28 AS42    PCH PCH
              28 AS12008 ULTRADNS - Centergate Research, LLC.
              27 AS33517 DYNDNS - Dynamic Network Services, Inc.
              27 AS35994 AKAMAI-AS - Akamai Technologies, Inc.
              25 AS2576  DOT-AS - U. S. Department of Transportation
              24 AS6830  UPC UPC Broadband
              23 AS15395 UK Rackspace
              21 AS702   AS702 Verizon Business EMEA - Commercial IP service provider in Europe
              21 AS7303  Telecom Argentina S.A.
              21 AS37944 CNNIC-CSTNET-AP CHINA SCIENCE AND TECHNOLOGY NETWORK
              20 AS13768 PEER1 - Peer 1 Network Inc.
              19 AS15557 LDCOMNET Societe Francaise du Radiotelephone S.A
              18 AS9942  COMINDICO-AP SOUL Converged Communications Australia

Last Week's Changes


This a daily snapshot of changes in routes being withdrawn and added. The deltas are calculated over a rolling 7 day period. Please bear in mind this is purely a "snapshot" and a large flucuation could be caused by a connectivity problem, for example.