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Geoff Huston

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IPv6 CIDR REPORT for 28 Mar 17

Report Sections:


This report is generated from an analysis of the BGP routing table within AS2.0 (APNIC), and was produced at Tue Mar 28 22:45:16 2017 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        21-03-17     37257       25389
        22-03-17     37252       25363
        23-03-17     37239       25406
        24-03-17     37932       25404
        25-03-17     37965       25425
        26-03-17     37986       25422
        27-03-17     37988       25441
        28-03-17     38010       25441

 

AS Summary


         13122  Number of ASes in routing system
          9154  Number of ASes announcing only one prefix
          1331  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.

         --- 28Mar17 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table      38019    25463    12556    33.0%   All ASes

        AS22773     1331       90     1241    93.2%   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
        AS13361      743       34      709    95.4%   VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
        AS28573      550      198      352    64.0%   CLARO S.A., BR
        AS3651       372       56      316    84.9%   SPRINT-BB6 - Sprint, US
        AS55430      286       19      267    93.4%   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
        AS16509      452      199      253    56.0%   AMAZON-02 - Amazon.com, Inc., US
        AS20277      255        8      247    96.9%   OSP-EU-WEST-001, GB
        AS174        351      107      244    69.5%   COGENT-174 - Cogent Communications, US
        AS32098      393      198      195    49.6%   TRANSTELCO-INC - Transtelco Inc, US
        AS18403      191        2      189    99.0%   FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
        AS30036      222       55      167    75.2%   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
        AS36992      166       28      138    83.1%   ETISALAT-MISR, EG
        AS20057      149       25      124    83.2%   ATT-MOBILITY-LLC-AS20057 - AT&T Mobility LLC, US
        AS25019      170       46      124    72.9%   SAUDINETSTC-AS, SA
        AS22394      437      330      107    24.5%   CELLCO - Cellco Partnership DBA Verizon Wireless, US
        AS13122      131       36       95    72.5%   MTS-INDIA-IN 334,Udyog Vihar, IN
        AS43766       99       23       76    76.8%   MTC-KSA-AS, SA
        AS15169       88       14       74    84.1%   GOOGLE - Google Inc., US
        AS6327        78        7       71    91.0%   SHAW - Shaw Communications Inc., CA
        AS17552       84       17       67    79.8%   TRUE-AS-AP True Internet Co.,Ltd., TH
        AS17451       67        1       66    98.5%   BIZNET-AS-AP BIZNET NETWORKS, ID
        AS19551      176      112       64    36.4%   INCAPSULA - Incapsula Inc, US
        AS42         171      115       56    32.7%   WOODYNET-1 - WoodyNet, US
        AS17832       83       27       56    67.5%   SIXNGIX Korea Internet Security Agency, KR
        AS9931        62        6       56    90.3%   CAT-AP The Communication Authoity of Thailand, CAT, TH
        AS36351       95       42       53    55.8%   SOFTLAYER - SoftLayer Technologies Inc., US
        AS15133      346      295       51    14.7%   EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
        AS25145       51        1       50    98.0%   TEKNOTEL-AS Teknotel Telekomunikasyon A.S., TR

        Total       8125     2101     6024    74.1%   Top 30 total


        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
            1331 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
             743 AS133612 VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
             550 AS28573 CLARO S.A., BR
             452 AS16509 AMAZON-02 - Amazon.com, Inc., US
             437 AS22394 CELLCO - Cellco Partnership DBA Verizon Wireless, US
             393 AS32098 TRANSTELCO-INC - Transtelco Inc, US
             374 AS20940 AKAMAI-ASN1, US
             372 AS3651  SPRINT-BB6 - Sprint, US
             351 AS174   COGENT-174 - Cogent Communications, US
             346 AS15133 EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
             286 AS55430 STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
             268 AS9605  DOCOMO NTT DOCOMO, INC., JP
             258 AS132061 REALMOVE-AS-AP Realmove Company Limited, TH
             255 AS202773 OSP-EU-WEST-001, GB
             222 AS30036 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
             217 AS12041 AS-AFILIAS1 - Afilias Canada, Corp., CA
             191 AS18403 FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
             183 AS54113 FASTLY - Fastly, US
             176 AS12222 AKAMAI - Akamai Technologies, Inc., US
             176 AS19551 INCAPSULA - Incapsula Inc, 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.