Report for 33652

Name

CMCS - 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.

33652 CMCS - Comcast Cable Communications, LLC, US

  Adjacency:    42  Upstream:     1  Downstream:    41
  Upstream Adjacent AS list
    AS7922          COMCAST-7922 - Comcast Cable Communications, LLC, US
  Downstream Adjacent AS list
    AS10844         VASTNET - Vastnet Corp, US
    AS11091         --No Registry Entry--
    AS12156         AURORA-COLORADO - City of Aurora Colorado, US
    AS11200         REGISU - Regis University, US
    AS15071         BAX-BGP - BAX GLOBAL, US
    AS19076         WELDCOUNTYGOVERNMENT-ASN - Weld County Government, US
    AS19637         AVG19637 - Avago Technologies U.S. Inc., US
    AS18676         AVAYA - Avaya LLC, US
    AS17307         VIRTELA-1 - NTT Global Networks Incorporated, US
    AS23290         ELPASO-COUNTY-GOVERNMENT-COLORADO - El Paso County, US
    AS22593         BCBSNC-AS - Blue Cross and Blue Shield of North Carolina, US
    AS27580         ENGINEERING-ASN1 - CONVERGEONE HOLDINGS, INC., US
    AS30532         3310-617INTERNET - Healthcare Realty Trust, Inc., US
    AS29711         CENTURA-HEALTH - Centura Health Corporation, US
    AS31904         NCWCD-80513 - Northern Water, US
    AS20381         CABLELABS-LV - Cable Television Laboratories, Inc., US
    AS13618         HCEA - Holy Cross Energy, US
    AS11004         CITY-OF-GOLDEN-01 - City of Golden, US
    AS36093         PHILLONGDEALERSHIPSASN - Phil Long Dealerships, US
    AS36551         COMPASSION-INTL-GMC1 - Compassion International, Inc., US
    AS35928         BECKMAN-COULTER-ASN - BECKMAN COULTER, INC., US
    AS36585         CITY-OF-GREELEY - City of Greeley, US
    AS393696        NBB - New Belgium Brewing Company, US
    AS395566        OMNI - Orbital Media Networks, Inc., US
    AS395293        --No Registry Entry--
    AS395980        COMCAST-MES - Comcast Cable Communications, LLC, US
    AS397486        COMMERCECITY-NET - City of Commerce City, US
    AS401317        BPLD - Boulder Public Library District, US
    AS400096        PIKES-PEAK-REGIONAL-BUILDING-80910 - Pikes Peak Regional Building Department, US
    AS398985        CITY-OF-ARVADA - City of Arvada, US
    AS397126        SWRI-BLDR - Southwest Research Institute, US
    AS40584         AS40584 - Enova International, Inc., US
    AS46299         LITTLETON-AS - City of Littleton, US
    AS401963        VVHOSP - VALLEY VIEW HOSPITAL ASSOCIATION, US
    AS54053         REALOGY-DDC - Realogy Group LLC, US
    AS63198         JCSO-ASN - Jefferson County Sheriff's Office, US
    AS62503         NPGCO-KRDO - News-Press & Gazette Company, US
    AS54493         ASPEN-VALLEY-HOSPITAL - Aspen Valley Hospital, US
    AS54384         CORE-ASN - CORE Electric Cooperative, US
    AS53983         CORKAT-DATA-SOLUTIONS - CorKat Data Solutions, LLC, US
    AS32306         FALCK-MOBILE-HEALTH-CORP - Falck USA, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
7819  AS33652        ORG+TRN Originate:      16384 /18.00  Transit:      89088 /15.56 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       %
39827 AS33652       CMCS - Comcast Cable Communications, LLC, US      41      0      0     41      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  24.104.146.0/24      4777 2516 7922 33652   
  45.147.159.0/24      4777 2516 7922 33652   
  46.34.39.0/24        4777 2516 7922 33652   
  46.202.218.0/24      4777 2516 7922 33652   
  50.147.168.0/24      4777 2516 7922 33652   
  50.169.236.0/24      4777 2516 7922 33652   
  50.169.239.0/24      4777 2516 7922 33652   
  50.201.230.0/24      4777 2516 7922 33652   
  50.203.219.0/24      4777 2516 7922 33652   
  50.204.71.0/24       4777 2516 7922 33652   
  50.205.29.0/24       4777 2516 7922 33652   
  50.206.155.0/24      4777 2516 7922 33652   
  50.218.67.0/24       4777 2516 7922 33652   
  50.220.96.0/24       4777 2516 7922 33652   
  50.221.47.0/24       4777 2516 7922 33652   
  50.221.49.0/24       4777 2516 7922 33652   
  50.222.96.0/24       4777 2516 7922 33652   
  50.222.100.0/24      4777 2516 7922 33652   
  50.225.186.0/24      4777 2516 7922 33652   
  50.227.104.0/24      4777 2516 7922 33652   
  50.227.142.0/24      4777 2516 7922 33652   
  50.228.62.0/24       4777 2516 7922 33652   
  50.232.50.0/24       4777 2516 7922 33652   
  50.233.144.0/24      4777 2516 7922 33652   
  50.236.26.0/24       4777 2516 7922 33652   
  50.237.69.0/24       4777 2516 7922 33652   
  50.238.57.0/24       4777 2516 7922 33652   
  50.238.58.0/24       4777 2516 7922 33652   
  64.50.168.0/21       4777 2516 7922 33652   
  64.130.16.0/20       4777 2516 7922 33652   
  77.111.118.0/24      4777 2516 7922 33652   
  92.113.86.0/24       4777 2516 7922 33652   
  92.113.89.0/24       4777 2516 7922 33652   
  92.113.114.0/24      4777 2516 7922 33652   
  107.1.38.0/24        4777 2516 7922 33652   
  107.1.222.0/23       4777 2516 7922 33652   
  107.1.252.0/24       4777 2516 7922 33652   
  139.181.28.0/24      4777 2516 7922 33652   
  166.88.179.0/24      4777 2516 7922 33652   
  192.234.211.0/24     4777 2516 7922 33652   
  204.228.81.0/24      4777 2516 7922 33652   

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

AS33652   39 More Specifics   41 Total Advertisements   CMCS - Comcast Cable Communications, LLC, US
    24.104.146.0/24               24.104.128.0/19
    45.147.159.0/24               45.147.156.0/22
    46.34.39.0/24                 46.34.32.0/19
    46.202.218.0/24               46.200.0.0/14
    50.147.168.0/24               50.128.0.0/9
    50.169.236.0/24               50.128.0.0/9
    50.169.239.0/24               50.128.0.0/9
    50.201.230.0/24               50.128.0.0/9
    50.203.219.0/24               50.128.0.0/9
    50.204.71.0/24                50.128.0.0/9
    50.205.29.0/24                50.128.0.0/9
    50.206.155.0/24               50.128.0.0/9
    50.218.67.0/24                50.128.0.0/9
    50.220.96.0/24                50.128.0.0/9
    50.221.47.0/24                50.128.0.0/9
    50.221.49.0/24                50.128.0.0/9
    50.222.96.0/24                50.128.0.0/9
    50.222.100.0/24               50.128.0.0/9
    50.225.186.0/24               50.128.0.0/9
    50.227.104.0/24               50.128.0.0/9
    50.227.142.0/24               50.128.0.0/9
    50.228.62.0/24                50.128.0.0/9
    50.232.50.0/24                50.128.0.0/9
    50.233.144.0/24               50.128.0.0/9
    50.236.26.0/24                50.128.0.0/9
    50.237.69.0/24                50.128.0.0/9
    50.238.57.0/24                50.128.0.0/9
    50.238.58.0/24                50.128.0.0/9
    64.50.168.0/21                64.50.160.0/19
    64.130.16.0/20                64.130.0.0/19
    77.111.118.0/24               77.111.112.0/20
    92.113.86.0/24                92.112.0.0/15
    92.113.89.0/24                92.112.0.0/15
    92.113.114.0/24               92.112.0.0/15
    107.1.38.0/24                 107.0.0.0/14
    107.1.222.0/23                107.0.0.0/14
    107.1.252.0/24                107.0.0.0/14
    139.181.28.0/24               139.181.0.0/16
    166.88.179.0/24               166.88.0.0/16

Bogus ASes Announced by this AS

Bogus AS		Announcing-AS
AS11091	Announced by	AS33652	CMCS - Comcast Cable Communications, LLC, US
AS395293	Announced by	AS33652	CMCS - Comcast Cable Communications, LLC, US

Whois Entry

whois: 402591

IANA has recorded AS33652 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS33652\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:       33652
             ASName:         CMCS
             ASHandle:       AS33652
             RegDate:        2005-02-16
             Updated:        2021-01-25
             Ref:            https://rdap.arin.net/registry/autnum/33652
             
             
             
             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.
             #