Report for 20214

Name

COMCAST-20214 - 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 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.

20214 COMCAST-20214 - Comcast Cable Communications, LLC, US

  Adjacency:    12  Upstream:     1  Downstream:    11
  Upstream Adjacent AS list
    AS7922          COMCAST-7922 - Comcast Cable Communications, LLC, US
  Downstream Adjacent AS list
    AS62958         ADT-LLC - ADT LLC, US
    AS16423         NETTOGO-BLK - NETTOGO, US
    AS22032         ORC-KEYLARGO - Ocean Reef Club, Inc., US
    AS17035         NBCUNI-17035 - NBCUniversal, US
    AS393843        WPLG-TV - WPLG-TV, US
    AS396235        TODFL - Town of Davie, US
    AS398044        FIBERFED - Trinity Network Solutions, US
    AS399241        OCEAN-BANK - Ocean Bank, US
    AS36040         YOUTUBE - Google LLC, US
    AS63415         GREAT-HEALTHWORKS-4150-BUILDING - Great Healthworks, Inc, US
    AS401691        ABM-859 - UNIVERSAL HEALTH SERVICES, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1696  AS20214        ORG+TRN Originate:     140800 /14.90  Transit:      11776 /18.48 COMCAST-20214 - Comcast Cable Communications, LLC, 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       %
16199 AS20214       COMCAST-20214 - Comcast Cable Communications,     23      2      0     21      2   8.70%


  Prefix               AS Path                              Aggregation Suggestion
  50.150.146.0/24      4777 2516 7922 20214   
  50.200.25.0/24       4777 2516 7922 20214   
  50.200.159.0/24      4777 2516 7922 20214   
  50.202.4.0/24        4777 2516 7922 20214   
  50.202.167.0/24      4777 2516 7922 20214   
  50.202.227.0/24      4777 2516 7922 20214   
  50.205.246.0/23      4777 2516 7922 20214   
  50.216.237.0/24      4777 2516 7922 20214   
  50.222.172.0/24      4777 2516 7922 20214   
  50.223.45.0/24       4777 2516 7922 20214   
  50.224.11.0/24       4777 2516 7922 20214   
  50.224.22.0/24       4777 2516 7922 20214   
  50.224.86.0/24       4777 2516 7922 20214   
  50.224.249.0/24      4777 2516 7922 20214   
  50.229.72.0/24       4777 2516 7922 20214   
  50.233.138.0/23      4777 2516 7922 20214   
  50.237.82.0/24       4777 2516 7922 20214   
  50.237.224.0/24      4777 2516 7922 20214   
  141.193.53.0/24      4777 2516 7922 20214   
  147.137.0.0/16       4777 2516 7922 20214   
  168.221.0.0/16       4777 2516 7922 20214   
  168.221.171.0/24     4777 2516 7922 20214 - Withdrawn - matching aggregate 168.221.0.0/16 4777 2516 7922 20214
  168.221.176.0/20     4777 2516 7922 20214 - Withdrawn - matching aggregate 168.221.0.0/16 4777 2516 7922 20214

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

AS20214   21 More Specifics   23 Total Advertisements   COMCAST-20214 - Comcast Cable Communications, LLC, US
    50.150.146.0/24               50.128.0.0/9
    50.200.25.0/24                50.128.0.0/9
    50.200.159.0/24               50.128.0.0/9
    50.202.4.0/24                 50.128.0.0/9
    50.202.167.0/24               50.128.0.0/9
    50.202.227.0/24               50.128.0.0/9
    50.205.246.0/23               50.128.0.0/9
    50.216.237.0/24               50.128.0.0/9
    50.222.172.0/24               50.128.0.0/9
    50.223.45.0/24                50.128.0.0/9
    50.224.11.0/24                50.128.0.0/9
    50.224.22.0/24                50.128.0.0/9
    50.224.86.0/24                50.128.0.0/9
    50.224.249.0/24               50.128.0.0/9
    50.229.72.0/24                50.128.0.0/9
    50.233.138.0/23               50.128.0.0/9
    50.237.82.0/24                50.128.0.0/9
    50.237.224.0/24               50.128.0.0/9
    141.193.53.0/24               141.193.48.0/21
    168.221.171.0/24              168.221.0.0/16
    168.221.176.0/20              168.221.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS20214 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20214\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:       20214
             ASName:         COMCAST-20214
             ASHandle:       AS20214
             RegDate:        2001-04-06
             Updated:        2021-01-25
             Ref:            https://rdap.arin.net/registry/autnum/20214
             
             
             
             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.
             #