Home    BGP Reports    CIDR Reports   IPv4 Reports   IPv6 Reports    IETF Docs  

Geoff Huston

Comments to: cidr-reports@potaroo.net



IPv6 CIDR REPORT for 22 Oct 17

Report Sections:


This report is generated from an analysis of the BGP routing table within AS2.0 (RouteViews), and was produced at Sun Oct 22 18:15:05 2017 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        15-10-17     47516       31590
        16-10-17     47499       31706
        17-10-17     47539       31808
        18-10-17     47579       31710
        19-10-17     47593       31782
        20-10-17     47653       31865
        21-10-17     47646       31959
        22-10-17     47648       31958

 

AS Summary


         14365  Number of ASes in routing system
          9739  Number of ASes announcing only one prefix
          1255  Largest number of prefixes announced by an AS
                AS22773: ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
      4503711304187904 (/12.00) 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.

         --- 22Oct17 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table      47534    31918    15616    32.9%   All ASes

        AS22773     1255       82     1173    93.5%   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
        AS28573      873      268      605    69.3%   CLARO S.A., BR
        AS13361      551      118      433    78.6%   VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
        AS174        601      294      307    51.1%   COGENT-174 - Cogent Communications, US
        AS16509      599      308      291    48.6%   AMAZON-02 - Amazon.com, Inc., US
        AS32098      463      185      278    60.0%   TRANSTELCO-INC - Transtelco Inc, US
        AS55430      292       31      261    89.4%   STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
        AS9605       268        9      259    96.6%   DOCOMO NTT DOCOMO, INC., JP
        AS13206      258        1      257    99.6%   REALMOVE-AS-AP Realmove Company Limited, TH
        AS3651       308       52      256    83.1%   SPRINT-BB6 - Sprint, US
        AS20277      258       11      247    95.7%   OSP-EU-WEST-001, GB
        AS8151       245       27      218    89.0%   Uninet S.A. de C.V., MX
        AS54540      292       96      196    67.1%   INCERO - Incero LLC, US
        AS13489      189       11      178    94.2%   EPM Telecomunicaciones S.A. E.S.P., CO
        AS30036      218       47      171    78.4%   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
        AS18403      197       39      158    80.2%   FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
        AS54113      395      254      141    35.7%   FASTLY - Fastly, US
        AS36992      173       34      139    80.3%   ETISALAT-MISR, EG
        AS20057      153       27      126    82.4%   ATT-MOBILITY-LLC-AS20057 - AT&T Mobility LLC, US
        AS22394      439      319      120    27.3%   CELLCO - Cellco Partnership DBA Verizon Wireless, US
        AS25019      160       59      101    63.1%   SAUDINETSTC-AS, SA
        AS15133      278      194       84    30.2%   EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
        AS13122      113       29       84    74.3%   MTS-INDIA-IN 334,Udyog Vihar, IN
        AS45609      119       37       82    68.9%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS6327        86        8       78    90.7%   SHAW - Shaw Communications Inc., CA
        AS43766       99       23       76    76.8%   MTC-KSA-AS, SA
        AS39340      267      195       72    27.0%   DIGITALOCEAN-ASN-NY3 - Digital Ocean, Inc., US
        AS10507       85       14       71    83.5%   SPCS - Sprint Personal Communications Systems, US
        AS19551      237      166       71    30.0%   INCAPSULA - Incapsula Inc, US
        AS13144       70        1       69    98.6%   AIS3G-2100-AS-AP Advance Wireless Network, TH

        Total       9541     2939     6602    69.2%   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.