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Geoff Huston

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IPv6 CIDR REPORT for 24 Sep 17

Report Sections:


This report is generated from an analysis of the BGP routing table within AS2.0 (APNIC), and was produced at Sun Sep 24 11:45:20 2017 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        17-09-17     43061       28017
        18-09-17     42995       27947
        19-09-17     42948       28003
        20-09-17     42542       28137
        21-09-17     42589       28180
        22-09-17     42615       28202
        23-09-17     42696       28221
        24-09-17     42702       28221

 

AS Summary


         14041  Number of ASes in routing system
          9696  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
      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.

         --- 24Sep17 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table      42702    28202    14500    34.0%   All ASes

        AS22773     1255       62     1193    95.1%   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
        AS13361      748      114      634    84.8%   VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
        AS28573      728      270      458    62.9%   CLARO S.A., BR
        AS55430      290       20      270    93.1%   STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
        AS3651       324       55      269    83.0%   SPRINT-BB6 - Sprint, US
        AS16509      545      279      266    48.8%   AMAZON-02 - Amazon.com, Inc., US
        AS9605       268        9      259    96.6%   DOCOMO NTT DOCOMO, INC., JP
        AS13206      258        1      257    99.6%   REALMOVE-AS-AP Realmove Company Limited, TH
        AS174        355      108      247    69.6%   COGENT-174 - Cogent Communications, US
        AS20277      258       11      247    95.7%   OSP-EU-WEST-001, GB
        AS8151       225        5      220    97.8%   Uninet S.A. de C.V., MX
        AS32098      442      231      211    47.7%   TRANSTELCO-INC - Transtelco Inc, US
        AS54540      289      102      187    64.7%   INCERO - Incero LLC, US
        AS13489      174        4      170    97.7%   EPM Telecomunicaciones S.A. E.S.P., CO
        AS18403      170        1      169    99.4%   FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
        AS30036      212       46      166    78.3%   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
        AS36992      172       23      149    86.6%   ETISALAT-MISR, EG
        AS20057      153       27      126    82.4%   ATT-MOBILITY-LLC-AS20057 - AT&T Mobility LLC, US
        AS22394      439      326      113    25.7%   CELLCO - Cellco Partnership DBA Verizon Wireless, US
        AS25019      162       50      112    69.1%   SAUDINETSTC-AS, SA
        AS54113      346      241      105    30.3%   FASTLY - Fastly, US
        AS19551      236      151       85    36.0%   INCAPSULA - Incapsula Inc, US
        AS45609      117       32       85    72.6%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS13122      113       29       84    74.3%   MTS-INDIA-IN 334,Udyog Vihar, IN
        AS6327        86       11       75    87.2%   SHAW - Shaw Communications Inc., CA
        AS15169       87       14       73    83.9%   GOOGLE - Google Inc., US
        AS13144       71        3       68    95.8%   AIS3G-2100-AS-AP Advance Wireless Network, TH
        AS17451       68        2       66    97.1%   BIZNET-AS-AP BIZNET NETWORKS, ID
        AS43766       99       33       66    66.7%   MTC-KSA-AS, SA
        AS17552       84       23       61    72.6%   TRUE-AS-AP True Internet Co.,Ltd., TH

        Total       8774     2283     6491    74.0%   Top 30 total


        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
            1255 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
             748 AS133612 VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
             728 AS28573 CLARO S.A., BR
             545 AS16509 AMAZON-02 - Amazon.com, Inc., US
             442 AS32098 TRANSTELCO-INC - Transtelco Inc, US
             439 AS22394 CELLCO - Cellco Partnership DBA Verizon Wireless, US
             404 AS20940 AKAMAI-ASN1, US
             355 AS174   COGENT-174 - Cogent Communications, US
             346 AS54113 FASTLY - Fastly, US
             324 AS3651  SPRINT-BB6 - Sprint, US
             297 AS15133 EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
             290 AS55430 STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
             289 AS54540 INCERO - Incero LLC, US
             268 AS9605  DOCOMO NTT DOCOMO, INC., JP
             258 AS132061 REALMOVE-AS-AP Realmove Company Limited, TH
             258 AS202773 OSP-EU-WEST-001, GB
             236 AS19551 INCAPSULA - Incapsula Inc, US
             225 AS8151  Uninet S.A. de C.V., MX
             220 AS12041 AS-AFILIAS1 - Afilias Canada, Corp., CA
             212 AS30036 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US


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.