Home    BGP Reports    CIDR Reports   IPv4 Reports   IPv6 Reports    IETF Docs  

Geoff Huston

Comments to: cidr-reports@potaroo.net



IPv6 CIDR REPORT for 18 Jan 19

Report Sections:


This report is generated from an analysis of the BGP routing table withinRouteViews, and was produced at Fri Jan 18 18:20:32 2019 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        11-01-19     66534       40196
        12-01-19     66511       40393
        13-01-19     66543       40360
        14-01-19     66610       39994
        15-01-19     66644       39844
        16-01-19     66640       40027
        17-01-19     66656       40001
        18-01-19     66843       39983

 

AS Summary


         16656  Number of ASes in routing system
         10829  Number of ASes announcing only one prefix
          2017  Largest number of prefixes announced by an AS
                AS45609: BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
      288230630101549056 (/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.

         --- 18Jan19 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table      66864    40088    26776    40.0%   All ASes

        AS45609     2017      211     1806    89.5%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS12479     1342       28     1314    97.9%   UNI2-AS, ES
        AS22773      979       12      967    98.8%   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
        AS28573     1007      146      861    85.5%   CLARO S.A., BR
        AS33363      648       53      595    91.8%   BHN-33363 - Charter Communications, Inc, US
        AS11172      582       38      544    93.5%   Alestra, S. de R.L. de C.V., MX
        AS30036      716      208      508    70.9%   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
        AS7552       660      170      490    74.2%   VIETEL-AS-AP Viettel Group, VN
        AS17622      490       95      395    80.6%   CNCGROUP-GZ China Unicom Guangzhou network, CN
        AS174        682      318      364    53.4%   COGENT-174 - Cogent Communications, US
        AS16509      772      413      359    46.5%   AMAZON-02 - Amazon.com, Inc., US
        AS45271      521      189      332    63.7%   ICLNET-AS-AP Idea Cellular Limited, IN
        AS9808       343       29      314    91.5%   CMNET-GD Guangdong Mobile Communication Co.Ltd., CN
        AS13361      532      222      310    58.3%   VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
        AS32098      622      356      266    42.8%   TRANSTELCO-INC - Transtelco Inc, US
        AS3462       283       22      261    92.2%   HINET Data Communication Business Group, TW
        AS9605       272       13      259    95.2%   DOCOMO NTT DOCOMO, INC., JP
        AS13206      258        1      257    99.6%   REALMOVE-AS-AP Realmove Company Limited, TH
        AS55430      291       36      255    87.6%   STARHUB-NGNBN Starhub Ltd, SG
        AS13142      259        8      251    96.9%   MOBIFONE-AS-VN MOBIFONE Corporation, VN
        AS54113      572      363      209    36.5%   FASTLY - Fastly, US
        AS4808       225       21      204    90.7%   CHINA169-BJ China Unicom Beijing Province Network, CN
        AS8151       256       56      200    78.1%   Uninet S.A. de C.V., MX
        AS54540      304      109      195    64.1%   INCERO-HVVC - HIVELOCITY, Inc., US
        AS3651       221       36      185    83.7%   SPRINT-BB6 - Sprint, US
        AS10507      201       32      169    84.1%   SPCS - Sprint Personal Communications Systems, US
        AS17621      181       15      166    91.7%   CNCGROUP-SH China Unicom Shanghai network, CN
        AS18403      215       53      162    75.3%   FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
        AS17552      180       23      157    87.2%   TRUE-AS-AP True Internet Co.,Ltd., TH
        AS22394      541      384      157    29.0%   CELLCO - Cellco Partnership DBA Verizon Wireless, US

        Total      16172     3660    12512    77.4%   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.