Report for 7757

Name

COMCAST-7757 - 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 AS4637) 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.

7757 CCCH-AS4 - Comcast Cable Communications Holdings, Inc

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS20001   ROADRUNNER-WEST - Road Runner HoldCo LLC

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
469   AS7757   ORIGIN  Originate:     485888 /13.11  Transit:          0 /0.00  CCCH-AS4 - Comcast Cable Communications Holdings, Inc

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       %
 4561 AS7757  CCCH-AS4 - Comcast Cable Communications      24      2      1     23      1   4.17%


  Prefix               AS Path                              Aggregation Suggestion
  24.130.0.0/16        4637 3356 20001 7757   
  64.183.12.0/22       4637 3356 20001 7757 + Announce - aggregate of 64.183.12.0/23 (4637 3356 20001 7757) and 64.183.14.0/23 (4637 3356 20001 7757)
  64.183.12.0/23       4637 3356 20001 7757 - Withdrawn - aggregated with 64.183.14.0/23 (4637 3356 20001 7757)
  64.183.14.0/23       4637 3356 20001 7757 - Withdrawn - aggregated with 64.183.12.0/23 (4637 3356 20001 7757)
  64.183.16.0/20       4637 3356 20001 7757   
  64.183.32.0/19       4637 3356 20001 7757   
  68.87.70.0/24        4637 3356 20001 7757   
  68.87.208.0/22       4637 3356 20001 7757   
  68.87.247.0/24       4637 3356 20001 7757   
  69.240.164.0/23      4637 3356 20001 7757   
  70.88.20.0/22        4637 3356 20001 7757   
  70.88.176.0/22       4637 3356 20001 7757   
  70.89.252.0/22       4637 3356 20001 7757   
  70.90.200.0/21       4637 3356 20001 7757   
  70.90.226.0/23       4637 3356 20001 7757   
  74.62.152.0/21       4637 3356 20001 7757   
  74.62.212.0/22       4637 3356 20001 7757   
  74.93.28.0/22        4637 3356 20001 7757   
  76.79.72.0/21        4637 3356 20001 7757   
  76.80.0.0/16         4637 3356 20001 7757   
  76.82.128.0/18       4637 3356 20001 7757   
  76.82.224.0/19       4637 3356 20001 7757   
  76.83.64.0/19        4637 3356 20001 7757   
  76.166.0.0/17        4637 3356 20001 7757   
  76.168.0.0/14        4637 3356 20001 7757   

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

AS7757   29 More Specifics   30 Total Advertisements   CCCH-AS4 - Comcast Cable Communications Holdings, Inc
    64.183.12.0/23                64.183.0.0/17
    64.183.14.0/23                64.183.0.0/17
    64.183.16.0/20                64.183.0.0/17
    64.183.32.0/19                64.183.0.0/17
    68.87.70.0/24                 68.80.0.0/13
    68.87.208.0/22                68.80.0.0/13
    68.87.247.0/24                68.80.0.0/13
    69.240.164.0/23               69.240.0.0/12
    70.88.20.0/22                 70.88.0.0/14
    70.88.176.0/22                70.88.0.0/14
    70.89.252.0/22                70.88.0.0/14
    70.90.200.0/21                70.88.0.0/14
    70.90.226.0/23                70.88.0.0/14
    74.62.28.0/22                 74.62.0.0/16
    74.62.152.0/21                74.62.0.0/16
    74.62.204.0/22                74.62.0.0/16
    74.62.208.0/20                74.62.0.0/16
    74.62.212.0/22                74.62.0.0/16
    74.93.28.0/22                 74.92.0.0/14
    76.79.72.0/21                 76.79.0.0/16
    76.79.176.0/20                76.79.0.0/16
    76.80.0.0/16                  76.80.0.0/13
    76.82.128.0/18                76.80.0.0/13
    76.82.224.0/19                76.80.0.0/13
    76.83.64.0/19                 76.80.0.0/13
    76.87.0.0/17                  76.80.0.0/13
    76.87.224.0/19                76.80.0.0/13
    76.166.0.0/17                 76.166.0.0/15
    76.168.0.0/14                 76.168.0.0/13

Whois Entry

whois: 402332

IANA has recorded AS7757 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS7757\n             % [whois.apnic.net]
             % Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html
             
             %ERROR:101: no entries found
             %
             % No entries found in source APNIC,JPNIC,KRNIC,TWNIC,IDNIC,IRINN-GRS.
             
             % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU4)