Home    BGP Reports    CIDR Reports   IPv4 Reports   IPv6 Reports    IETF Docs  

Geoff Huston

Comments to: cidr-reports@potaroo.net



IPv6 CIDR REPORT for 24 Sep 18

Report Sections:


This report is generated from an analysis of the BGP routing table within AS6447 (RouteViews), and was produced at Mon Sep 24 23:19:41 2018 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        17-09-18     60399       36874
        18-09-18     60709       37233
        19-09-18     60673       37438
        20-09-18     60805       37396
        21-09-18     60939       37107
        22-09-18     60927       37212
        23-09-18     60982       37302
        24-09-18     60994       37318

 

AS Summary


         16071  Number of ASes in routing system
         10527  Number of ASes announcing only one prefix
          1453  Largest number of prefixes announced by an AS
                AS45609: BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
      288231179319902208 (/6.00) Largest address span announced by an AS (/64s)
                AS12552: IPO-EU, SE


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.

         --- 24Sep18 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table      61011    37444    23567    38.6%   All ASes

        AS45609     1453       78     1375    94.6%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS12479     1139       29     1110    97.5%   UNI2-AS, ES
        AS22773      982       11      971    98.9%   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
        AS28573      957      118      839    87.7%   CLARO S.A., BR
        AS33363      651       59      592    90.9%   BHN-TAMPA - BRIGHT HOUSE NETWORKS, LLC, US
        AS7552       553      102      451    81.6%   VIETEL-AS-AP Viettel Group, VN
        AS45271      455       60      395    86.8%   ICLNET-AS-AP Idea Cellular Limited, IN
        AS16509      754      392      362    48.0%   AMAZON-02 - Amazon.com, Inc., US
        AS174        654      306      348    53.2%   COGENT-174 - Cogent Communications, US
        AS9808       319       14      305    95.6%   CMNET-GD Guangdong Mobile Communication Co.Ltd., CN
        AS13361      532      233      299    56.2%   VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
        AS32098      614      333      281    45.8%   TRANSTELCO-INC - Transtelco Inc, US
        AS54113      589      318      271    46.0%   FASTLY - Fastly, US
        AS30036      420      150      270    64.3%   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
        AS55430      290       30      260    89.7%   STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
        AS9605       272       13      259    95.2%   DOCOMO NTT DOCOMO, INC., JP
        AS13206      258        1      257    99.6%   REALMOVE-AS-AP Realmove Company Limited, TH
        AS18403      213        8      205    96.2%   FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
        AS4808       217       18      199    91.7%   CHINA169-BJ China Unicom Beijing Province Network, CN
        AS54540      301      106      195    64.8%   INCERO - Incero LLC, US
        AS3651       221       36      185    83.7%   SPRINT-BB6 - Sprint, US
        AS10507      200       32      168    84.0%   SPCS - Sprint Personal Communications Systems, US
        AS17622      344      179      165    48.0%   CNCGROUP-GZ China Unicom Guangzhou network, CN
        AS11172      200       40      160    80.0%   Alestra, S. de R.L. de C.V., MX
        AS17621      167       14      153    91.6%   CNCGROUP-SH China Unicom Shanghai network, CN
        AS7497       154        3      151    98.1%   CSTNET-AS-AP Computer Network Information Center, CN
        AS22394      499      360      139    27.9%   CELLCO - Cellco Partnership DBA Verizon Wireless, US
        AS20057      158       28      130    82.3%   ATT-MOBILITY-LLC-AS20057 - AT&T Mobility LLC, US
        AS38266      172       44      128    74.4%   VODAFONE-IN Vodafone India Ltd., IN
        AS52257      184       59      125    67.9%   Telconet S.A, EC

        Total      13922     3174    10748    77.2%   Top 30 total


        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description


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.