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 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.

33652 CMCS, US

  Adjacency:    74  Upstream:     2  Downstream:    72
  Upstream Adjacent AS list
    AS3356          LEVEL3, US
    AS7922          COMCAST-7922, US
  Downstream Adjacent AS list
    AS26399         BROADMOOR, US
    AS10753         LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE, US
    AS18691         -Reserved AS-, ZZ
    AS18669         BSEC-CA-1, US
    AS23154         SANMINA-SCI, US
    AS32175         TRANSIT, US
    AS22024         SPLUNK-WEST, US
    AS32642         NICMAN, US
    AS32535         GAYLORD-ROCKIES-01BGPFO, US
    AS394841        CBKASN, US
    AS394757        PARSONS-PA-2, US
    AS393233        VENTIVTECH, US
    AS396057        CUD-9305, US
    AS397024        AMGNATIONAL, US
    AS396538        NORTHSITE-DATA, US
    AS398403        SSI, US
    AS399665        ZOLL-BROOMFIELD, US
    AS399384        MISSION-HILLS-CHURCH, US
    AS399948        CCU-LAKEWOOD, US
    AS400650        QUANTUM-AS-1, US
    AS400448        TOCR-EDGE, US
    AS47090         SCLHS-47090, US
    AS395483        AAMLIVE-INC, US
    AS62750         LIBERTYMEDIA, US
    AS395435        GAIA, US
    AS14567         SPRINGS, US
    AS13618         HCEA, US
    AS40284         GSCBN, US
    AS397571        PLEXUSSYSTEMS-DV, US
    AS36093         PHILLONGDEALERSHIPSASN, US
    AS54067         CSC-ASN, US
    AS53454         FULLDUPLEX-DEN, US
    AS10844         VASTNET, US
    AS11091         -Reserved AS-, ZZ
    AS12156         AURORA-COLORADO, US
    AS15071         BAX-BGP, US
    AS19076         WELDCOUNTYGOVERNMENT-ASN, US
    AS19637         AVG19637, US
    AS18676         AVAYA, US
    AS17307         VIRTELA-1, US
    AS11200         REGISU, US
    AS23290         ELPASO-COUNTY-GOVERNMENT-COLORADO, US
    AS22593         BCBSNC-AS, US
    AS27580         ENGINEERING-ASN1, US
    AS30532         3310-617INTERNET, US
    AS29711         CENTURA-HEALTH, US
    AS31904         NCWCD-80513, US
    AS20381         CABLELABS-LV, US
    AS11004         CITY-OF-GOLDEN-01, US
    AS36551         COMPASSION-INTL-GMC1, US
    AS35928         BECKMAN-COULTER-ASN, US
    AS36585         CITY-OF-GREELEY, US
    AS393696        NBB, US
    AS395566        OMNI, US
    AS395293        -Reserved AS-, ZZ
    AS395980        COMCAST-MES, US
    AS397486        COMMERCECITY-NET, US
    AS401317        BPLD, US
    AS400096        PIKES-PEAK-REGIONAL-BUILDING-80910, US
    AS398985        CITY-OF-ARVADA, US
    AS397126        SWRI-BLDR, US
    AS40584         AS40584, US
    AS46299         LITTLETON-AS, US
    AS401963        --No Registry Entry--
    AS54053         REALOGY-DDC, US
    AS63198         -Reserved AS-, ZZ
    AS62503         NPGCO-KRDO, US
    AS64246         -Reserved AS-, ZZ
    AS54493         ASPEN-VALLEY-HOSPITAL, US
    AS54384         CORE-ASN, US
    AS53983         CORKAT-DATA-SOLUTIONS, US
    AS32306         FALCK-MOBILE-HEALTH-CORP, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
7912  AS33652        ORG+TRN Originate:      16384 /18.00  Transit:      87552 /15.58 CMCS, 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       %
40310 AS33652       CMCS, US                                          41      0      0     41      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  24.104.146.0/24      3257 7922 33652        
  45.147.159.0/24      6939 7922 33652        
  46.34.39.0/24        6939 7922 33652        
  46.202.218.0/24      6939 7922 33652        
  50.147.168.0/24      3257 7922 33652        
  50.169.236.0/24      2152 7922 33652        
  50.169.239.0/24      2152 7922 33652        
  50.201.230.0/24      6939 7922 33652        
  50.203.219.0/24      6939 7922 33652        
  50.204.71.0/24       3257 7922 33652        
  50.205.29.0/24       6939 7922 33652        
  50.206.155.0/24      3257 7922 33652        
  50.218.67.0/24       3257 7922 33652        
  50.220.96.0/24       3257 7922 33652        
  50.221.47.0/24       3257 7922 33652        
  50.221.49.0/24       3257 7922 33652        
  50.222.96.0/24       3257 7922 33652        
  50.222.100.0/24      3257 7922 33652        
  50.225.186.0/24      3257 7922 33652        
  50.227.104.0/24      3257 7922 33652        
  50.227.142.0/24      3257 7922 33652        
  50.228.62.0/24       3257 7922 33652        
  50.232.50.0/24       3257 7922 33652        
  50.233.144.0/24      3257 7922 33652        
  50.236.26.0/24       3257 7922 33652        
  50.237.69.0/24       3257 7922 33652        
  50.238.57.0/24       6939 7922 33652        
  50.238.58.0/24       6939 7922 33652        
  64.50.168.0/21       57866 3356 33652       
  64.130.16.0/20       57866 3356 33652       
  77.111.118.0/24      6939 7922 33652        
  92.113.86.0/24       6939 7922 33652        
  92.113.89.0/24       6939 7922 33652        
  92.113.114.0/24      6939 7922 33652        
  107.1.38.0/24        3257 7922 33652        
  107.1.222.0/23       3257 7922 33652        
  107.1.252.0/24       3257 7922 33652        
  139.181.28.0/24      57866 3356 33652       
  166.88.179.0/24      6939 7922 33652        
  192.234.211.0/24     57866 3356 33652       
  204.228.81.0/24      57866 3356 33652       

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

AS33652   37 More Specifics   39 Total Advertisements   CMCS, US
    24.104.146.0/24               24.104.128.0/19
    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
    50.205.193.0/24               50.128.0.0/9
    50.206.155.0/24               50.128.0.0/9
    50.206.211.0/24               50.128.0.0/9
    50.206.244.0/24               50.128.0.0/9
    50.207.80.0/24                50.128.0.0/9
    50.216.93.0/24                50.128.0.0/9
    50.216.147.0/24               50.128.0.0/9
    50.218.7.0/24                 50.128.0.0/9
    50.218.67.0/24                50.128.0.0/9
    50.220.88.0/24                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
    50.222.132.0/24               50.128.0.0/9
    50.225.186.0/24               50.128.0.0/9
    50.227.68.0/24                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
    50.228.118.0/24               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
    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
    50.169.194.0/24               50.128.0.0/9
    107.1.59.0/24                 107.0.0.0/14

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

    + 50.205.193.0/24             Announced
    + 50.206.211.0/24             Announced
    + 50.216.93.0/24              Announced
    - 50.169.194.0/24             Withdrawn
    - 107.1.59.0/24               Withdrawn

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: 402603

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.
             #