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Geoff Huston

Comments to: cidr-reports@potaroo.net



IPv6 CIDR REPORT for 28 Mar 24

Report Sections:


This report is generated from an analysis of the BGP routing table withinAS131072, and was produced at Thu Mar 28 10:46:14 2024 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        21-03-24    206517      104270
        22-03-24    206784      104224
        23-03-24    206857      104235
        24-03-24    206758      104243
        25-03-24    206779      104011
        26-03-24    206930      104105
        27-03-24    207026      104291
        28-03-24    207187      104291

 

AS Summary


         33035  Number of ASes in routing system
         20720  Number of ASes announcing only one prefix
          6639  Largest number of prefixes announced by an AS
                AS11172: Alestra, S. de R.L. de C.V., MX
      36318243520512 (/18.95) Largest address span announced by an AS (/64s)
                AS7922 : COMCAST-7922, 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.

         --- 28Mar24 ---
        ASnum         NetsNow NetsAggr  NetGain   % Gain   Description

        Table          207293   104381   102912    49.6%   All ASes

        AS11172          6639      977     5662    85.3%   Alestra, S. de R.L. de C.V., MX
        AS9808           4694      685     4009    85.4%   CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
        AS7552           2912        5     2907    99.8%   VIETEL-AS-AP Viettel Group, VN
        AS18403          4067     1387     2680    65.9%   FPT-AS-AP FPT Telecom Company, VN
        AS60539          2055        8     2047    99.6%   HUICAST_TELECOM, HK
        AS45609          2583      553     2030    78.6%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS16509          4680     2717     1963    41.9%   AMAZON-02, US
        AS24547          2029      157     1872    92.3%   CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limited, CN
        AS45271          1827      403     1424    77.9%   ICLNET-AS-AP Idea Cellular Limited, IN
        AS39891          1538      117     1421    92.4%   ALJAWWALSTC-AS, SA
        AS132884         1284        3     1281    99.8%   SUMMIT-BD Summit Communications Limited, BD
        AS28573          1460      232     1228    84.1%   Claro NXT Telecomunicacoes Ltda, BR
        AS22773          1290       67     1223    94.8%   ASN-CXA-ALL-CCI-22773-RDC, US
        AS32098          1364      208     1156    84.8%   TRANSTELCO-INC, US
        AS4538           1643      512     1131    68.8%   ERX-CERNET-BKB China Education and Research Network Center, CN
        AS24432          1173       42     1131    96.4%   AXIATA-ROBI-AS-AP TM International Bangladesh Ltd.Internet service Provider,Gulshan-1,Dhaka-1212, BD
        AS56046          1157       42     1115    96.4%   CMNET-JIANGSU-AP China Mobile communications corporation, CN
        AS38266          1507      426     1081    71.7%   VIL-AS-AP Vodafone Idea Ltd, IN
        AS62240          1132       68     1064    94.0%   CLOUVIDER Clouvider - Global ASN, GB
        AS5416           1037        7     1030    99.3%   Internet Service Provider, BH
        AS56044          1062       78      984    92.7%   CMNET-AS-LIAONING China Mobile communications corporation, CN
        AS4808           1062      174      888    83.6%   CHINA169-BJ China Unicom Beijing Province Network, CN
        AS12479          1508      796      712    47.2%   UNI2-AS, ES
        AS26611           708       46      662    93.5%   COMUNICACION CELULAR S.A. COMCEL S.A., CO
        AS56167           616       12      604    98.1%   PTML-PK Plot No 181-186 Street, PK
        AS4134            604       24      580    96.0%   CHINANET-BACKBONE No.31,Jin-rong Street, CN
        AS56047           720      146      574    79.7%   CMNET-HUNAN-AP China Mobile communications corporation, CN
        AS17072          1319      747      572    43.4%   TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
        AS12025           606       35      571    94.2%   IMDC-AS12025, US
        AS11664           798      242      556    69.7%   Techtel LMDS Comunicaciones Interactivas S.A., AR

        Total           55074    10916    44158    80.2%   Top 30 total


        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
            6639 AS11172 Alestra, S. de R.L. de C.V., MX
            4694 AS9808  CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
            4680 AS16509 AMAZON-02, US
            4067 AS18403 FPT-AS-AP FPT Telecom Company, VN
            2912 AS7552  VIETEL-AS-AP Viettel Group, VN
            2583 AS45609 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
            2055 AS60539 HUICAST_TELECOM, HK
            2029 AS24547 CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limited, CN
            1827 AS45271 ICLNET-AS-AP Idea Cellular Limited, IN
            1643 AS4538  ERX-CERNET-BKB China Education and Research Network Center, CN
            1538 AS39891 ALJAWWALSTC-AS, SA
            1536 AS17622 CNCGROUP-GZ China Unicom Guangzhou network, CN
            1508 AS12479 UNI2-AS, ES
            1507 AS38266 VIL-AS-AP Vodafone Idea Ltd, IN
            1481 AS13335 CLOUDFLARENET, US
            1460 AS28573 Claro NXT Telecomunicacoes Ltda, BR
            1364 AS32098 TRANSTELCO-INC, US
            1346 AS36183 AKAMAI-AS, US
            1319 AS17072 TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX
            1290 AS22773 ASN-CXA-ALL-CCI-22773-RDC, 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.