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Geoff Huston

Comments to: cidr-reports@potaroo.net


IPv6 CIDR REPORT for 23 Dec 24

Report Sections:

This report is generated from an analysis of the BGP routing table withinRouteViews, and was produced at Mon Dec 23 09:05:13 2024 AEST.

Status Summary

Table History


        Date      Prefixes    CIDR Agg
        16-12-24    226801      115820
        17-12-24    226566      115809
        18-12-24    226833      115725
        19-12-24    226772      116282
        20-12-24    227390      116333
        21-12-24    227692      116493
        22-12-24    227696      115938
        23-12-24    227690      115991

 

AS Summary


         34702  Number of ASes in routing system
         17148  Number of ASes announcing only one prefix
          5551  Largest number of prefixes announced by an AS
                AS9808 : CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
      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. 

         --- 23Dec24 ---
        ASnum         NetsNow NetsAggr  NetGain   % Gain   Description

        Table          227673   115967   111706    49.1%   All ASes

        AS9808           5551     1016     4535    81.7%   CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
        AS4538           4898      728     4170    85.1%   ERX-CERNET-BKB China Education and Research Network Center, CN
        AS18403          3649      205     3444    94.4%   FPT-AS-AP FPT Telecom Company, VN
        AS11172          5204     1938     3266    62.8%   Alestra, S. de R.L. de C.V., MX
        AS7552           3156       40     3116    98.7%   VIETEL-AS-AP Viettel Group, VN
        AS60539          2562       25     2537    99.0%   HUICAST_TELECOM, HK
        AS45609          3073      647     2426    78.9%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS16509          5374     3148     2226    41.4%   AMAZON-02, US
        AS39891          1872      102     1770    94.6%   ALJAWWALSTC-AS, SA
        AS24547          1717       39     1678    97.7%   CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limited, CN
        AS22773          1294       61     1233    95.3%   ASN-CXA-ALL-CCI-22773-RDC, US
        AS56046          1216       56     1160    95.4%   CMNET-JIANGSU-AP China Mobile communications corporation, CN
        AS45271          1680      522     1158    68.9%   ICLNET-AS-AP Idea Cellular Limited, IN
        AS62240          1249      106     1143    91.5%   CLOUVIDER Clouvider - Global ASN, GB
        AS47331          1190       71     1119    94.0%   TTNET, TR
        AS56044          1159       83     1076    92.8%   CMNET-AS-LIAONING China Mobile communications corporation, CN
        AS56041          1155      112     1043    90.3%   CMNET-ZHEJIANG-AP China Mobile communications corporation, CN
        AS5416           1037        1     1036    99.9%   Internet Service Provider, BH
        AS4808           1186      168     1018    85.8%   CHINA169-BJ China Unicom Beijing Province Network, CN
        AS22677          2345     1360      985    42.0%   CHARTER-22677-MO-IL-C3, US
        AS28573          1576      593      983    62.4%   Claro NXT Telecomunicacoes Ltda, BR
        AS38266          1387      530      857    61.8%   VIL-AS-AP Vodafone Idea Ltd, IN
        AS32098          1356      507      849    62.6%   TRANSTELCO-INC, US
        AS132884         1028      202      826    80.4%   SUMMIT-BD Summit Communications Limited, BD
        AS12479          1483      741      742    50.0%   UNI2-AS, ES
        AS17853           745       20      725    97.3%   LGTELECOM-AS-KR LGTELECOM, KR
        AS30036          1032      381      651    63.1%   MEDIACOM-ENTERPRISE-BUSINESS, US
        AS56167           648       14      634    97.8%   PTML-PK Plot No 181-186 Street, PK
        AS4134            615       36      579    94.1%   CHINANET-BACKBONE No.31,Jin-rong Street, CN
        AS56047           722      147      575    79.6%   CMNET-HUNAN-AP China Mobile communications corporation, CN

        Total           61159    13599    47560    77.8%   Top 30 total




        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description

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.