Report for 202623

Name

CLOUDFLARENET-CORE - Cloudflare Inc, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

202623 CLOUDFLARENET-CORE - Cloudflare Inc, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS3257          GTT-BACKBONE - GTT Communications Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5538  AS202623       ORIGIN  Originate:      30208 /17.12  Transit:          0 /0.00  CLOUDFLARENET-CORE - Cloudflare Inc, US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
27186 AS202623      CLOUDFLARENET-CORE - Cloudflare Inc, US           10      2      1      9      1  10.00%


  Prefix               AS Path                              Aggregation Suggestion
  104.23.32.0/19       4608 7575 2914 13335 202623   
  104.23.64.0/19       4608 7575 2914 13335 202623   
  141.101.64.0/24      4777 2516 3257 202623   
  141.101.91.0/24      4608 7575 3356 13335 202623   
  172.71.32.0/19       4608 7575 3356 202623 202623   
  172.71.64.0/20       4608 7575 3356 13335 202623   
  198.41.143.0/24      4608 7575 2914 13335 202623   
  198.41.150.0/24      4608 7575 3356 13335 202623   
  198.41.252.0/23      4608 7575 2914 13335 202623 + Announce - aggregate of 198.41.252.0/24 (4608 7575 2914 13335 202623) and 198.41.253.0/24 (4608 7575 2914 13335 202623)
  198.41.252.0/24      4608 7575 2914 13335 202623 - Withdrawn - aggregated with 198.41.253.0/24 (4608 7575 2914 13335 202623)
  198.41.253.0/24      4608 7575 2914 13335 202623 - Withdrawn - aggregated with 198.41.252.0/24 (4608 7575 2914 13335 202623)

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS202623   10 More Specifics   10 Total Advertisements   CLOUDFLARENET-CORE - Cloudflare Inc, US
    104.23.32.0/19                104.16.0.0/12
    104.23.64.0/19                104.16.0.0/12
    141.101.64.0/24               141.101.64.0/18
    141.101.91.0/24               141.101.64.0/18
    172.71.32.0/19                172.64.0.0/13
    172.71.64.0/20                172.64.0.0/13
    198.41.143.0/24               198.41.128.0/17
    198.41.150.0/24               198.41.128.0/17
    198.41.252.0/24               198.41.128.0/17
    198.41.253.0/24               198.41.128.0/17

Whois Entry

whois: 402603

IANA has recorded AS202623 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS202623\n             % This is the RIPE Database query service.
             % The objects are in RPSL format.
             %
             % The RIPE Database is subject to Terms and Conditions.
             % See https://docs.db.ripe.net/terms-conditions.html
             
             % Note: this output has been filtered.
             
             % Information related to 'AS200537 - AS203022'
             
             as-block:       AS200537 - AS203022
             descr:          RIPE NCC ASN block
             remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
             mnt-by:         RIPE-NCC-HM-MNT
             created:        2026-04-08T13:28:00Z
             last-modified:  2026-04-08T13:28:00Z
             source:         RIPE
             
             % Information related to 'AS202623'
             
             % Abuse contact for 'AS202623' is 'abuse@cloudflare.com'
             
             aut-num:        AS202623
             as-name:        CLOUDFLARENET-CORE
             descr:          Cloudflare, Inc.
             descr:          101 Townsend Street, San Francisco, CA 94107, US
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         MNT-CLOUDFLARE
             admin-c:        CAC80-RIPE
             tech-c:         CTC6-RIPE
             org:            ORG-CI40-RIPE
             remarks:        https://cloudflare.com/abuse
             created:        2016-07-08T15:05:59Z
             last-modified:  2024-10-18T10:37:58Z
             source:         RIPE # Filtered
             
             organisation:   ORG-CI40-RIPE
             org-name:       Cloudflare Inc
             country:        US
             reg-nr:         4710875 (Delaware)
             org-type:       LIR
             remarks:        https://cloudflare.com/abuse
             address:        101 Townsend Street
             address:        CA 94107
             address:        San Francisco
             address:        UNITED STATES
             phone:          +1-650-319-8939
             fax-no:         +1-650-230-7173
             admin-c:        TP5485-RIPE
             admin-c:        ML18637-RIPE
             admin-c:        SR11544-RIPE
             abuse-c:        CF6885-RIPE
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        MNT-CLOUDFLARE
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         MNT-CLOUDFLARE
             created:        2011-05-25T10:01:50Z
             last-modified:  2026-05-13T07:33:38Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
             %
             % Queries from your IP address have passed the daily limit of controlled objects.
             % Access from your host has been temporarily denied.
             % For more information, see
             % https://docs.db.ripe.net/FAQ#why-did-i-receive-an-error-201-access-denied
             
             % This query was served by the RIPE Database Query Service version 1.122.1 (SHETLAND)