Home    BGP Reports    CIDR Reports   IPv4 Reports   IPv6 Reports    IETF Docs  

Geoff Huston

Comments to: cidr-reports@potaroo.net



IPv6 CIDR REPORT for 22 Oct 24

Report Sections:


This report is generated from an analysis of the BGP routing table withinAS131072, and was produced at Tue Oct 22 21:46:19 2024 AEST.


Status Summary

Table History


        Date      Prefixes    CIDR Agg
        15-10-24    218386      108612
        16-10-24    218294      108980
        17-10-24    218782      109259
        18-10-24    218750      109298
        19-10-24    218795      109558
        20-10-24    218845      109534
        21-10-24    218892      107604
        22-10-24    218970      107604

 

AS Summary


         34100  Number of ASes in routing system
         21066  Number of ASes announcing only one prefix
          7210  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.

         --- 22Oct24 ---
        ASnum         NetsNow NetsAggr  NetGain   % Gain   Description

        Table          219389   108226   111163    50.7%   All ASes

        AS11172          7210      696     6514    90.3%   Alestra, S. de R.L. de C.V., MX
        AS9808           5168      763     4405    85.2%   CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
        AS7552           3156      151     3005    95.2%   VIETEL-AS-AP Viettel Group, VN
        AS45609          2992      550     2442    81.6%   BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
        AS18403          3644     1327     2317    63.6%   FPT-AS-AP FPT Telecom Company, VN
        AS16509          5261     2963     2298    43.7%   AMAZON-02, US
        AS60539          2050        3     2047    99.9%   HUICAST_TELECOM, HK
        AS24547          1820       54     1766    97.0%   CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limited, CN
        AS39891          1673       37     1636    97.8%   ALJAWWALSTC-AS, SA
        AS45271          1741      300     1441    82.8%   ICLNET-AS-AP Idea Cellular Limited, IN
        AS7545           1698      389     1309    77.1%   TPG-INTERNET-AP TPG Telecom Limited, AU
        AS28573          1531      236     1295    84.6%   Claro NXT Telecomunicacoes Ltda, BR
        AS22773          1315       51     1264    96.1%   ASN-CXA-ALL-CCI-22773-RDC, US
        AS32098          1291       88     1203    93.2%   TRANSTELCO-INC, US
        AS56046          1214       55     1159    95.5%   CMNET-JIANGSU-AP China Mobile communications corporation, CN
        AS47331          1190       71     1119    94.0%   TTNET, TR
        AS4538           1665      558     1107    66.5%   ERX-CERNET-BKB China Education and Research Network Center, CN
        AS56044          1112       21     1091    98.1%   CMNET-AS-LIAONING China Mobile communications corporation, CN
        AS62240          1141       79     1062    93.1%   CLOUVIDER Clouvider - Global ASN, GB
        AS56041          1134       96     1038    91.5%   CMNET-ZHEJIANG-AP China Mobile communications corporation, CN
        AS5416           1037        7     1030    99.3%   Internet Service Provider, BH
        AS4808           1169      141     1028    87.9%   CHINA169-BJ China Unicom Beijing Province Network, CN
        AS132884         1028        4     1024    99.6%   SUMMIT-BD Summit Communications Limited, BD
        AS38266          1434      417     1017    70.9%   VIL-AS-AP Vodafone Idea Ltd, IN
        AS12479          1430      568      862    60.3%   UNI2-AS, ES
        AS17853           739        4      735    99.5%   LGTELECOM-AS-KR LGTELECOM, KR
        AS56167           648       14      634    97.8%   PTML-PK Plot No 181-186 Street, PK
        AS26611           689       67      622    90.3%   COMUNICACION CELULAR S.A. COMCEL S.A., CO
        AS12025           633       35      598    94.5%   IMDC-AS12025, US
        AS4134            604       24      580    96.0%   CHINANET-BACKBONE No.31,Jin-rong Street, CN

        Total           57417     9769    47648    83.0%   Top 30 total


        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
            7210 AS11172 Alestra, S. de R.L. de C.V., MX
            5261 AS16509 AMAZON-02, US
            5168 AS9808  CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
            3644 AS18403 FPT-AS-AP FPT Telecom Company, VN
            3156 AS7552  VIETEL-AS-AP Viettel Group, VN
            2992 AS45609 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service, IN
            2050 AS60539 HUICAST_TELECOM, HK
            1820 AS24547 CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limited, CN
            1741 AS45271 ICLNET-AS-AP Idea Cellular Limited, IN
            1733 AS13335 CLOUDFLARENET, US
            1698 AS7545  TPG-INTERNET-AP TPG Telecom Limited, AU
            1673 AS39891 ALJAWWALSTC-AS, SA
            1665 AS4538  ERX-CERNET-BKB China Education and Research Network Center, CN
            1531 AS28573 Claro NXT Telecomunicacoes Ltda, BR
            1529 AS17622 CNCGROUP-GZ China Unicom Guangzhou network, CN
            1434 AS38266 VIL-AS-AP Vodafone Idea Ltd, IN
            1430 AS12479 UNI2-AS, ES
            1352 AS36183 AKAMAI-AS, US
            1315 AS22773 ASN-CXA-ALL-CCI-22773-RDC, US
            1291 AS32098 TRANSTELCO-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.