IPv6 Report for 33654

Name

CMCS - Comcast Cable Communications, LLC, US

IPv6 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.

33654 CMCS - Comcast Cable Communications, LLC, US

  Adjacency:     2  Upstream:     1  Downstream:     1
  Upstream Adjacent AS list
    AS7922    COMCAST-7922 - Comcast Cable Communications, LLC, US
  Downstream Adjacent AS list
    AS62621   -Reserved AS-, ZZ

Announced IPv6 Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
27633 AS33654  ORG+TRN Originate:    1048576 /44.00  Transit:      65536 /48.00 CMCS - 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       %
 5988 AS33654 CMCS - Comcast Cable Communications, LLC     16      2      1     15      1   6.25%


  Prefix               AS Path                              Aggregation Suggestion
  2001:559:BA::/47     5539 1299 7922 33654 + Announce - aggregate of 2001:559:ba::/48 (5539 1299 7922 33654) and 2001:559:bb::/48 (5539 1299 7922 33654)
  2001:559:ba::/48     5539 1299 7922 33654 - Withdrawn - aggregated with 2001:559:bb::/48 (5539 1299 7922 33654)
  2001:559:bb::/48     5539 1299 7922 33654 - Withdrawn - aggregated with 2001:559:ba::/48 (5539 1299 7922 33654)
  2001:559:12b::/48    5539 1299 7922 33654   
  2001:559:24d::/48    5539 1299 7922 33654   
  2001:559:38f::/48    5539 1299 7922 33654   
  2001:559:3cf::/48    5539 1299 7922 33654   
  2001:559:7d7::/48    5539 1299 7922 33654   
  2001:559:8165::/48   5539 1299 7922 33654   
  2001:559:8208::/48   5539 1299 7922 33654   
  2001:559:8465::/48   5539 1299 7922 33654   
  2001:559:87cd::/48   5539 1299 7922 33654   
  2001:559:87ce::/48   5539 1299 7922 33654   
  2001:559:c151::/48   5539 1299 7922 33654   
  2001:559:c517::/48   5539 1299 7922 33654   
  2001:559:c553::/48   5539 1299 7922 33654   
  2001:559:c555::/48   5539 1299 7922 33654   

Bogus ASes Announced by this AS

Bogus AS		Announcing-AS
AS62621	Announced by	AS33654	CMCS - Comcast Cable Communications, LLC, US

Whois Entry

whois: 402332

IANA has recorded AS33654 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS33654\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:       33654
             ASName:         CMCS
             ASHandle:       AS33654
             RegDate:        2005-02-16
             Updated:        2021-01-25
             Ref:            https://rdap.arin.net/registry/autnum/33654
             
             
             
             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.
             #