Report for 33650

Name

COMCAST-33650 - 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.

33650 COMCAST-33650, US

  Adjacency:    67  Upstream:     2  Downstream:    65
  Upstream Adjacent AS list
    AS3356          LEVEL3, US
    AS7922          COMCAST-7922, US
  Downstream Adjacent AS list
    AS23478         CHAS-HEALTH, US
    AS33168         INLANDIMAGING, US
    AS11746         WAGGENER-EDSTROM, US
    AS14597         TRANS-SYSTEM, US
    AS19147         VANCOUVER-CLINIC, US
    AS22590         SKAGIT-COUNTY-PHD-2-WA, US
    AS32027         POS-ASN, US
    AS27225         TBI-ASN-1, US
    AS21549         IRON-MOUNTAIN, US
    AS3379          KAISER-NCAL, US
    AS393274        DARIGOLD-NET, US
    AS393353        ACUFCU, US
    AS393286        CASCADEAS, US
    AS394318        TELECOMMUNICATION-SYSTEMS-INC, US
    AS394631        SHS-NET-1, US
    AS395442        HERITAGEBANK, US
    AS396258        SEATTLEU-AS, US
    AS397183        FLEX-K-L, US
    AS398241        CELLNETIX, US
    AS399985        LL-DC, US
    AS40572         SEA-DC, US
    AS55244         BLUE-01, US
    AS46186         GILD-SCI, US
    AS400036        SAC-01, US
    AS395240        CARIAD-, US
    AS36709         OPTIMA, US
    AS63244         ASG, US
    AS22179         LTS-CO01, US
    AS36026         AS-CHI-CORP, US
    AS16763         TIDEWORKS, US
    AS10632         PSE-AS, US
    AS11278         NINTENDO, US
    AS11307         6750REI, US
    AS17308         WECU-ASN, US
    AS15307         CHILDRENS-SEATTLE, US
    AS20168         AM-US-AMER-PRECOR-PRECO-11, US
    AS18625         DIO-6464, US
    AS14203         JUNIPER-NETWORKS, US
    AS11270         TSCU-01, US
    AS32092         AAI-BLI-AS, US
    AS33529         PWC-136-33529, US
    AS32108         ASN-WSECU, US
    AS36075         SPACELABS-HEALTHCARE, US
    AS36329         INTRADO, US
    AS394608        KEXP-AS-NAME, US
    AS395617        PLYMOUTH, US
    AS393786        THEDOCTORSCLINIC, US
    AS393272        PORT-MADISON-ENTERPRISES, US
    AS396296        HORIZON-CREDIT-UNION-57, US
    AS396402        MULTICARE-HEALTH-SYSTEM, US
    AS397804        LDTUS-01, US
    AS396489        PPGNHI, US
    AS395974        COMCAST-MES, US
    AS399716        ISHIP-CORP, US
    AS36040         YOUTUBE, US
    AS40391         CHSINC, US
    AS40410         USFRCS-BGP, US
    AS6216          IV-AS, US
    AS62483         TEREX-AWP, US
    AS55214         COAST, US
    AS63029         PAYSCALE-WEB, US
    AS62801         -Reserved AS-, ZZ
    AS54128         POKEMON-BELLEVUE, US
    AS400240        NEEBUNET, US
    AS20940         AKAMAI-ASN1, NL

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
15955 AS33650        ORG+TRN Originate:       4608 /19.83  Transit:      37120 /16.82 COMCAST-33650, 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       %
40303 AS33650       COMCAST-33650, US                                 13      0      0     13      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  50.202.174.0/24      3257 7922 33650        
  50.204.37.0/24       6939 7922 33650        
  50.204.214.0/24      3257 7922 33650        
  50.207.166.0/24      6939 7922 33650        
  50.216.238.0/24      3257 7922 33650        
  50.222.54.0/24       3257 7922 33650        
  50.226.76.0/23       3257 7922 33650        
  50.234.46.0/23       3257 7922 33650        
  50.238.166.0/24      2914 7922 33650        
  50.238.235.0/24      6939 7922 33650        
  64.145.72.0/24       7018 7922 33650        
  107.0.168.0/24       3257 7922 33650        
  199.79.96.0/22       7018 7922 33650        

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

AS33650   25 More Specifics   28 Total Advertisements   COMCAST-33650, US
    23.32.46.0/24                 23.32.0.0/11
    23.45.228.0/22                23.32.0.0/11
    23.204.103.0/24               23.192.0.0/11
    23.210.216.0/24               23.192.0.0/11
    23.212.180.0/22               23.192.0.0/11
    23.217.12.0/22                23.192.0.0/11
    50.202.174.0/24               50.128.0.0/9
    50.204.37.0/24                50.128.0.0/9
    50.204.214.0/24               50.128.0.0/9
    50.204.253.0/24               50.128.0.0/9
    50.216.238.0/24               50.128.0.0/9
    50.219.1.0/24                 50.128.0.0/9
    50.219.38.0/24                50.128.0.0/9
    50.220.65.0/24                50.128.0.0/9
    50.222.54.0/24                50.128.0.0/9
    50.226.14.0/24                50.128.0.0/9
    50.226.76.0/23                50.128.0.0/9
    50.226.249.0/24               50.128.0.0/9
    50.234.46.0/23                50.128.0.0/9
    50.237.50.0/24                50.128.0.0/9
    50.238.144.0/24               50.128.0.0/9
    50.238.166.0/24               50.128.0.0/9
    50.238.235.0/24               50.128.0.0/9
    198.102.199.0/24              198.102.198.0/23
    199.79.96.0/22                199.79.64.0/18
    50.175.3.0/24                 50.128.0.0/9

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

    + 50.237.50.0/24              Announced
    - 50.175.3.0/24               Withdrawn

Bogus ASes Announced by this AS

Bogus AS		Announcing-AS
AS62801	Announced by	AS33650	COMCAST-33650 - Comcast Cable Communications, LLC, US

Whois Entry

whois: 402603

IANA has recorded AS33650 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS33650\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:       33650
             ASName:         COMCAST-33650
             ASHandle:       AS33650
             RegDate:        2005-02-16
             Updated:        2021-01-25
             Ref:            https://rdap.arin.net/registry/autnum/33650
             
             
             
             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.
             #