Report for 22258

Name

COMCAST-22258 - Comcast Cable Communications, LLC, 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 AS6447) 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.

22258 COMCAST-22258, US

  Adjacency:    13  Upstream:     1  Downstream:    12
  Upstream Adjacent AS list
    AS7922          COMCAST-7922, US
  Downstream Adjacent AS list
    AS31750         METHODIST-HEALTHCARE, US
    AS31787         MPORTHO, US
    AS36736         UTMG-TW-MNWX, US
    AS62568         BIC2ASN1, US
    AS23386         CRYE-LEIKE-REALTORS, US
    AS23509         INVLOCSVC, US
    AS36862         AS36862, US
    AS13335         CLOUDFLARENET, US
    AS32032         ORGILL-AS, US
    AS26735         MLGW, US
    AS36040         YOUTUBE, US
    AS394824        CBU, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
19208 AS22258        ORG+TRN Originate:       3328 /20.30  Transit:       2048 /21.00 COMCAST-22258, 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       %
36324 AS22258       COMCAST-22258, US                                  7      0      0      7      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  50.225.146.0/24      3257 7922 22258        
  157.240.141.0/24     6939 7922 22258        
  157.240.142.0/24     3257 7922 22258        
  167.29.0.0/22        3257 7922 22258        
  167.29.4.0/24        2914 7922 22258        
  167.29.8.0/24        2914 7922 22258        
  167.29.12.0/22       7018 7922 22258        

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

AS22258   9 More Specifics   9 Total Advertisements   COMCAST-22258, US
    50.225.146.0/24               50.128.0.0/9
    72.55.112.0/21                72.55.0.0/17
    72.55.120.0/21                72.55.0.0/17
    157.240.141.0/24              157.240.0.0/16
    157.240.142.0/24              157.240.0.0/16
    167.29.0.0/22                 167.29.0.0/16
    167.29.4.0/24                 167.29.0.0/16
    167.29.8.0/24                 167.29.0.0/16
    167.29.12.0/22                167.29.0.0/16

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 72.55.112.0/21              Announced
    + 72.55.120.0/21              Announced

Whois Entry

whois: 402590

IANA has recorded AS22258 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS22258\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       22258
             ASName:         COMCAST-22258
             ASHandle:       AS22258
             RegDate:        2001-08-27
             Updated:        2021-01-25
             Ref:            https://rdap.arin.net/registry/autnum/22258
             
             
             
             OrgName:        Comcast Cable Communications, LLC
             OrgId:          CCCS
             Address:        1800 Bishops Gate Blvd
             City:           Mt Laurel
             StateProv:      NJ
             PostalCode:     08054
             Country:        US
             RegDate:        2001-09-18
             Updated:        2020-11-18
             Ref:            https://rdap.arin.net/registry/entity/CCCS
             
             
             OrgTechHandle: IC161-ARIN
             OrgTechName:   Comcast Cable Communications Inc
             OrgTechPhone:  +1-856-792-2300 
             OrgTechEmail:  CNIPEO-Ip-registration@cable.comcast.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/IC161-ARIN
             
             OrgRoutingHandle: ROUTI25-ARIN
             OrgRoutingName:   Routing
             OrgRoutingPhone:  +1-856-792-2300 
             OrgRoutingEmail:  routing@comcast.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI25-ARIN
             
             OrgAbuseHandle: NAPO-ARIN
             OrgAbuseName:   Network Abuse and Policy Observance
             OrgAbusePhone:  +1-888-565-4329 
             OrgAbuseEmail:  abuse@comcast.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NAPO-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #