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Geoff Huston

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IPv6 CIDR REPORT for 26 May 17

Report Sections:


This report is generated from an analysis of the BGP routing table within AS2.0 (APNIC), and was produced at Fri May 26 16:45:17 2017 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        19-05-17     39530       26149
        20-05-17     39547       26143
        21-05-17     39533       26169
        22-05-17     39458       26157
        23-05-17     39600       26186
        24-05-17     39616       26205
        25-05-17     39647       25784
        26-05-17     38950       25784

 

AS Summary


         13448  Number of ASes in routing system
          9313  Number of ASes announcing only one prefix
          1421  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.

         --- 26May17 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table      39719    26254    13465    33.9%   All ASes

        AS22773     1421       90     1331    93.7%   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
        AS13361      727       25      702    96.6%   VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
        AS28573      678      241      437    64.5%   CLARO S.A., BR
        AS3651       356       55      301    84.6%   SPRINT-BB6 - Sprint, US
        AS7470       277        5      272    98.2%   TRUEINTERNET-AS-AP TRUE INTERNET Co.,Ltd., TH
        AS55430      290       20      270    93.1%   STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
        AS9605       268        9      259    96.6%   DOCOMO NTT DOCOMO, INC., JP
        AS20277      257       10      247    96.1%   OSP-EU-WEST-001, GB
        AS16509      445      199      246    55.3%   AMAZON-02 - Amazon.com, Inc., US
        AS174        350      114      236    67.4%   COGENT-174 - Cogent Communications, US
        AS32098      409      206      203    49.6%   TRANSTELCO-INC - Transtelco Inc, US
        AS30036      224       46      178    79.5%   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
        AS18403      179        2      177    98.9%   FPT-AS-AP The Corporation for Financing & Promoting Technology, VN
        AS8151       204       34      170    83.3%   Uninet S.A. de C.V., MX
        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      438      330      108    24.7%   CELLCO - Cellco Partnership DBA Verizon Wireless, US
        AS13122      129       34       95    73.6%   MTS-INDIA-IN 334,Udyog Vihar, IN
        AS43766       99       23       76    76.8%   MTC-KSA-AS, SA
        AS15169       84       10       74    88.1%   GOOGLE - Google Inc., US
        AS6327        80        7       73    91.2%   SHAW - Shaw Communications Inc., CA
        AS13489       89       18       71    79.8%   EPM Telecomunicaciones S.A. E.S.P., CO
        AS9931        75        6       69    92.0%   CAT-AP The Communication Authoity of Thailand, CAT, TH
        AS17451       68        1       67    98.5%   BIZNET-AS-AP BIZNET NETWORKS, ID
        AS19551      176      109       67    38.1%   INCAPSULA - Incapsula Inc, US
        AS17552       75       11       64    85.3%   TRUE-AS-AP True Internet Co.,Ltd., TH
        AS15133      340      282       58    17.1%   EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
        AS17832       84       27       57    67.9%   SIXNGIX Korea Internet Security Agency, KR
        AS42         171      115       56    32.7%   WOODYNET-1 - WoodyNet, US

        Total       8478     2128     6350    74.9%   Top 30 total


        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
            1421 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
             727 AS133612 VODAFONE-AS-AP Vodafone Australia Pty Ltd, AU
             678 AS28573 CLARO S.A., BR
             445 AS16509 AMAZON-02 - Amazon.com, Inc., US
             438 AS22394 CELLCO - Cellco Partnership DBA Verizon Wireless, US
             409 AS32098 TRANSTELCO-INC - Transtelco Inc, US
             378 AS20940 AKAMAI-ASN1, US
             356 AS3651  SPRINT-BB6 - Sprint, US
             350 AS174   COGENT-174 - Cogent Communications, US
             340 AS15133 EDGECAST - MCI Communications Services, Inc. d/b/a Verizon Business, US
             290 AS55430 STARHUBINTERNET-AS-NGNBN Starhub Internet Pte Ltd, SG
             277 AS7470  TRUEINTERNET-AS-AP TRUE INTERNET Co.,Ltd., TH
             268 AS9605  DOCOMO NTT DOCOMO, INC., JP
             257 AS202773 OSP-EU-WEST-001, GB
             224 AS30036 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
             217 AS12041 AS-AFILIAS1 - Afilias Canada, Corp., CA
             213 AS54113 FASTLY - Fastly, US
             204 AS8151  Uninet S.A. de C.V., MX
             181 AS12222 AKAMAI - Akamai Technologies, Inc., US
             179 AS18403 FPT-AS-AP The Corporation for Financing & Promoting Technology, VN


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.