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Geoff Huston

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IPv6 CIDR REPORT for 17 Jan 18

Report Sections:


This report is generated from an analysis of the BGP routing table within AS2.0 (APNIC), and was produced at Wed Jan 17 12:45:25 2018 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        10-01-18     45816       29358
        11-01-18     46196       29453
        12-01-18     46309       29503
        13-01-18     46375       29580
        14-01-18     46434       29583
        15-01-18     46412       29638
        16-01-18     46490       29651
        17-01-18     46400       29651

 

AS Summary


         14664  Number of ASes in routing system
          9983  Number of ASes announcing only one prefix
          1246  Largest number of prefixes announced by an AS
                AS22773: ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
      36318243520512 (/18.95) Largest address span announced by an AS (/64s)
                AS7922 : COMCAST-7922 - Comcast Cable Communications, LLC, US


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.

         --- 17Jan18 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table      46445    29700    16745    36.1%   All ASes

        AS22773     1246       26     1220    97.9%   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
        AS28573      853      139      714    83.7%   CLARO S.A., BR
        AS13361      595       40      555    93.3%   VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
        AS32098      503        3      500    99.4%   TRANSTELCO-INC - Transtelco Inc, US
        AS16509      618      316      302    48.9%   AMAZON-02 - Amazon.com, Inc., US
        AS7470       278        6      272    97.8%   TRUEINTERNET-AS-AP TRUE INTERNET Co.,Ltd., TH
        AS55430      290       20      270    93.1%   STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
        AS174        369      110      259    70.2%   COGENT-174 - Cogent Communications, US
        AS9605       268        9      259    96.6%   DOCOMO NTT DOCOMO, INC., JP
        AS8151       269       22      247    91.8%   Uninet S.A. de C.V., MX
        AS54113      485      238      247    50.9%   FASTLY - Fastly, US
        AS20277      258       11      247    95.7%   OSP-EU-WEST-001, GB
        AS13489      237        4      233    98.3%   EPM Telecomunicaciones S.A. E.S.P., CO
        AS3651       272       47      225    82.7%   SPRINT-BB6 - Sprint, US
        AS54540      296       96      200    67.6%   INCERO - Incero LLC, US
        AS45271      243       49      194    79.8%   ICLNET-AS-AP Idea Cellular Limited, IN
        AS45609      227       49      178    78.4%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS30036      219       42      177    80.8%   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
        AS18403      173        4      169    97.7%   FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
        AS20057      157       27      130    82.8%   ATT-MOBILITY-LLC-AS20057 - AT&T Mobility LLC, US
        AS7497       135       13      122    90.4%   CSTNET-AS-AP Computer Network Information Center, CN
        AS22394      437      316      121    27.7%   CELLCO - Cellco Partnership DBA Verizon Wireless, US
        AS10507      145       28      117    80.7%   SPCS - Sprint Personal Communications Systems, US
        AS19551      299      192      107    35.8%   INCAPSULA - Incapsula Inc, US
        AS25019      124       38       86    69.4%   SAUDINETSTC-AS, SA
        AS39607      100       18       82    82.0%   ROOT-NETWORKS - Root Networks, LLC, US
        AS14522       87        9       78    89.7%   Satnet, EC
        AS6327        87       11       76    87.4%   SHAW - Shaw Communications Inc., CA
        AS15133      280      204       76    27.1%   EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
        AS43766       99       23       76    76.8%   MTC-KSA-AS, SA

        Total       9649     2110     7539    78.1%   Top 30 total


        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
            1246 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
             853 AS28573 CLARO S.A., BR
             618 AS16509 AMAZON-02 - Amazon.com, Inc., US
             595 AS133612 VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
             503 AS32098 TRANSTELCO-INC - Transtelco Inc, US
             485 AS54113 FASTLY - Fastly, US
             452 AS20940 AKAMAI-ASN1, US
             437 AS22394 CELLCO - Cellco Partnership DBA Verizon Wireless, US
             369 AS174   COGENT-174 - Cogent Communications, US
             299 AS19551 INCAPSULA - Incapsula Inc, US
             296 AS54540 INCERO - Incero LLC, US
             290 AS55430 STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
             280 AS15133 EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
             278 AS7470  TRUEINTERNET-AS-AP TRUE INTERNET Co.,Ltd., TH
             272 AS3651  SPRINT-BB6 - Sprint, US
             269 AS8151  Uninet S.A. de C.V., MX
             268 AS9605  DOCOMO NTT DOCOMO, INC., JP
             258 AS202773 OSP-EU-WEST-001, GB
             243 AS45271 ICLNET-AS-AP Idea Cellular Limited, IN
             237 AS13489 EPM Telecomunicaciones S.A. E.S.P., CO


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.