Report for 7725

Name

COMCAST-7725 - 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.

7725 COMCAST-7725, US

  Adjacency:    63  Upstream:     2  Downstream:    61
  Upstream Adjacent AS list
    AS3356          LEVEL3, US
    AS7922          COMCAST-7922, US
  Downstream Adjacent AS list
    AS13768         COGECO-PEER1, CA
    AS20073         RPIPRINT-INC, US
    AS25739         ADTRAN, US
    AS29855         SGCORP29855, US
    AS30625         AKERMAN-SENTERFITT, US
    AS29764         AMETEK-CTC, US
    AS36041         ASN-SCAD-ATLANTA, US
    AS393233        VENTIVTECH, US
    AS27548         USAN-AS-A, US
    AS395979        ONEDIGITAL-AS1, US
    AS40800         VEEAM-, US
    AS46654         OC-INTERNET, US
    AS53626         CORUS360, US
    AS40464         ECLIPSENET, US
    AS32221         BARONSERVICES, US
    AS397418        SYNAMEDIA, US
    AS23154         SANMINA-SCI, US
    AS53984         AS-WELLSTAR, US
    AS11199         SHOWNETSAS, US
    AS26511         AACT-INTERNET, US
    AS36542         SERVERNET, US
    AS399974        FULTON-ASN, US
    AS54649         ADC-ATLANTA, US
    AS393805        USSTHQ, US
    AS54302         UNA-IP-ASN-01, US
    AS22379         MANIFOLD, US
    AS22304         CITY-OF-MARIETTA-GEORGIA, US
    AS25633         DATAMATX-ATL, US
    AS394248        S1-SUWANEE-DC, US
    AS393385        NVI-SHARED, US
    AS22531         UDI-SMY-01, US
    AS17145         TEAJAX, US
    AS40057         GAAQUA, US
    AS14725         AS14725, US
    AS14395         FHLBATL, US
    AS13433         COXNET, US
    AS21784         AUCRWWL, US
    AS19155         VYSTARCU, US
    AS21938         YAMAHA-DEALERS, US
    AS22768         SYNERGYBROADBAND-MI-02, US
    AS14934         AGS-LLC-AGO, US
    AS26883         AS26883, US
    AS14816         HKUASN, US
    AS12211         OCNL-AS12211, US
    AS33304         RACETRAC, US
    AS393567        AS-EQX-ATLC-01, US
    AS33741         DENNIS-GROUP, US
    AS27292         RESMED-AMR-AS, US
    AS395420        JAS, US
    AS396019        COMCAST-MES, US
    AS400571        CADENCE-ATL, US
    AS401422        ASNCOBBCOUNTY, US
    AS40072         TCSG, US
    AS39946         CHICKFILA, US
    AS394549        GEMAHS01, US
    AS4503          EGINTERLINK, US
    AS41437         KNAPP-AS, AT
    AS40724         DEKALB-COUNTY-GEORGIA-GOVERNMENT, US
    AS55086         PINNACLE-DATA-SYSTEMS, US
    AS54244         ICS, US
    AS402183        --No Registry Entry--

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
9398  AS7725         ORG+TRN Originate:      12032 /18.45  Transit:     151040 /14.80 COMCAST-7725, 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       %
20626 AS7725        COMCAST-7725, US                                  36      2      1     35      1   2.78%


  Prefix               AS Path                              Aggregation Suggestion
  24.104.42.0/24       6939 7922 7725         
  24.104.125.0/24      3257 7922 7725         
  50.200.84.0/24       3257 7922 7725         
  50.200.228.0/24      3257 7922 7725         
  50.201.173.0/24      6939 7922 7725         
  50.201.206.0/24      3257 7922 7725         
  50.201.221.0/24      6939 7922 7725         
  50.204.42.0/24       3257 7922 7725         
  50.204.249.0/24      3257 7922 7725         
  50.205.36.0/23       6939 7922 7725         
  50.205.240.0/24      3257 7922 7725         
  50.207.4.0/24        3257 7922 7725         
  50.220.99.0/24       3257 7922 7725         
  50.220.236.0/24      3257 7922 7725         
  50.224.48.0/23       3257 7922 7725         
  50.225.207.0/24      3257 7922 7725         
  50.232.28.0/24       3257 7922 7725         
  50.233.190.0/24      6939 7922 7725         
  50.234.27.0/24       6939 7922 7725         
  50.235.151.0/24      3257 7922 7725         
  50.238.8.0/24        3257 7922 7725         
  72.162.12.0/23       293 3356 7725          
  72.162.28.0/22       6939 7922 7725       + Announce - aggregate of 72.162.28.0/23 (6939 7922 7725) and 72.162.30.0/23 (6939 7922 7725)
  72.162.28.0/23       6939 7922 7725       - Withdrawn - aggregated with 72.162.30.0/23 (6939 7922 7725)
  72.162.30.0/23       6939 7922 7725       - Withdrawn - aggregated with 72.162.28.0/23 (6939 7922 7725)
  72.162.32.0/24       6939 7922 7725         
  72.162.36.0/24       57866 3356 7725        
  72.162.37.0/24       6939 7922 7725         
  72.162.44.0/22       57866 3356 7725        
  72.162.48.0/23       293 3356 7725          
  72.162.100.0/23      57866 3356 7725        
  107.0.147.0/24       6939 7922 7725         
  139.181.24.0/24      6939 7922 7725         
  167.136.33.0/24      3257 7922 7725         
  167.183.251.0/24     57866 3356 7725        
  205.167.158.0/23     293 3356 7725          
  209.23.246.0/24      3257 7922 7725         

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

AS7725   32 More Specifics   33 Total Advertisements   COMCAST-7725, US
    24.104.42.0/24                24.104.0.0/17
    24.104.125.0/24               24.104.0.0/17
    50.200.84.0/24                50.128.0.0/9
    50.200.228.0/24               50.128.0.0/9
    50.201.173.0/24               50.128.0.0/9
    50.201.206.0/24               50.128.0.0/9
    50.201.221.0/24               50.128.0.0/9
    50.203.252.0/24               50.128.0.0/9
    50.204.42.0/24                50.128.0.0/9
    50.204.249.0/24               50.128.0.0/9
    50.205.36.0/23                50.128.0.0/9
    50.205.240.0/24               50.128.0.0/9
    50.207.4.0/24                 50.128.0.0/9
    50.220.99.0/24                50.128.0.0/9
    50.220.236.0/24               50.128.0.0/9
    50.224.48.0/23                50.128.0.0/9
    50.224.221.0/24               50.128.0.0/9
    50.225.207.0/24               50.128.0.0/9
    50.232.28.0/24                50.128.0.0/9
    50.233.190.0/24               50.128.0.0/9
    50.234.27.0/24                50.128.0.0/9
    50.235.151.0/24               50.128.0.0/9
    50.238.8.0/24                 50.128.0.0/9
    50.239.181.0/24               50.128.0.0/9
    72.162.12.0/23                72.162.0.0/16
    72.162.36.0/24                72.162.0.0/16
    72.162.48.0/23                72.162.0.0/16
    107.0.142.0/24                107.0.0.0/14
    107.0.147.0/24                107.0.0.0/14
    139.181.24.0/24               139.181.0.0/16
    167.183.251.0/24              167.183.0.0/16
    209.23.246.0/24               209.23.192.0/18
    50.168.176.0/24               50.128.0.0/9
    50.168.205.0/24               50.128.0.0/9
    50.168.234.0/24               50.128.0.0/9
    50.168.236.0/24               50.128.0.0/9

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

    + 50.239.181.0/24             Announced
    - 50.168.176.0/24             Withdrawn
    - 50.168.205.0/24             Withdrawn
    - 50.168.234.0/24             Withdrawn
    - 50.168.236.0/24             Withdrawn

Whois Entry

whois: 402603

IANA has recorded AS7725 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS7725\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:       7725
             ASName:         COMCAST-7725
             ASHandle:       AS7725
             RegDate:        1996-12-20
             Updated:        2021-01-25
             Ref:            https://rdap.arin.net/registry/autnum/7725
             
             
             Comcast Cable Communications, LLC (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.
             #