Report for 264821

Name

COMCAST-SRL, DO

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.

264821 COMCAST-SRL, DO

  Adjacency:    16  Upstream:     1  Downstream:    15
  Upstream Adjacent AS list
    AS23520         LIBERTY-NETWORKS - Columbus Networks USA, Inc., US
  Downstream Adjacent AS list
    AS64134         VISNETWORK SRL, DO
    AS272149        DLD SERVICIO SRL, DO
    AS269950        CABLE VISION E. GONZALEZ, S.R.L., DO
    AS271982        TELEVISION, PUNTO I COMUNICACIONES, S.R.L., DO
    AS271799        TELERY NETWORKS, S.R.L, DO
    AS270098        WI-FI DOMINICANA, E.I.R.L., DO
    AS272807        TELECABLE PUERTO PLATA SRL, DO
    AS271808        MONTECRISTI CABLE VISION, SRL, DO
    AS272822        JEMNETWORKS, S.R.L., DO
    AS273162        PELLEGRINI SKYNET SOLUTIONS SRL, DO
    AS273917        2 LIGHTS CONEXION, S.R.L., DO
    AS274129        ABITAVERAS WIRELESS, S.R.L., DO
    AS274290        YEYA WIFIL SRL, DO
    AS274070        Soluciones de Networking Amin Moran SRL, DO
    AS273009        NEXTELECOM, S.R.L., DO

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
20711 AS264821       ORG+TRN Originate:       3072 /20.42  Transit:       5632 /19.54 COMCAST-SRL, DO

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       %
 5662 AS264821      COMCAST-SRL, DO                                   12     12      3      3      9  75.00%


  Prefix               AS Path                              Aggregation Suggestion
  138.97.248.0/22      4777 2497 1299 23520 264821 + Announce - aggregate of 138.97.248.0/23 (4777 2497 1299 23520 264821) and 138.97.250.0/23 (4777 2497 1299 23520 264821)
  138.97.248.0/24      4777 2497 1299 23520 264821 - Withdrawn - aggregated with 138.97.249.0/24 (4777 2497 1299 23520 264821)
  138.97.249.0/24      4777 2497 1299 23520 264821 - Withdrawn - aggregated with 138.97.248.0/24 (4777 2497 1299 23520 264821)
  138.97.250.0/24      4777 2497 1299 23520 264821 - Withdrawn - aggregated with 138.97.251.0/24 (4777 2497 1299 23520 264821)
  138.97.251.0/24      4777 2497 1299 23520 264821 - Withdrawn - aggregated with 138.97.250.0/24 (4777 2497 1299 23520 264821)
  168.196.124.0/22     4777 2497 1299 23520 264821 + Announce - aggregate of 168.196.124.0/23 (4777 2497 1299 23520 264821) and 168.196.126.0/23 (4777 2497 1299 23520 264821)
  168.196.124.0/24     4777 2497 1299 23520 264821 - Withdrawn - aggregated with 168.196.125.0/24 (4777 2497 1299 23520 264821)
  168.196.125.0/24     4777 2497 1299 23520 264821 - Withdrawn - aggregated with 168.196.124.0/24 (4777 2497 1299 23520 264821)
  168.196.126.0/24     4777 2497 1299 23520 264821 - Withdrawn - aggregated with 168.196.127.0/24 (4777 2497 1299 23520 264821)
  168.196.127.0/24     4777 2497 1299 23520 264821 - Withdrawn - aggregated with 168.196.126.0/24 (4777 2497 1299 23520 264821)
  179.51.144.0/22      4777 2516 6830 23520 264821 + Announce - aggregate of 179.51.144.0/23 (4777 2516 6830 23520 264821) and 179.51.146.0/23 (4777 2516 6830 23520 264821)
  179.51.144.0/24      4777 2516 6830 23520 264821 - Withdrawn - aggregated with 179.51.145.0/24 (4777 2516 6830 23520 264821)
  179.51.145.0/24      4777 2516 6830 23520 264821 - Withdrawn - aggregated with 179.51.144.0/24 (4777 2516 6830 23520 264821)
  179.51.146.0/24      4777 2516 6830 23520 264821 - Withdrawn - aggregated with 179.51.147.0/24 (4777 2516 6830 23520 264821)
  179.51.147.0/24      4777 2516 6830 23520 264821 - Withdrawn - aggregated with 179.51.146.0/24 (4777 2516 6830 23520 264821)

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

AS264821   12 More Specifics   12 Total Advertisements   COMCAST-SRL, DO
    138.97.248.0/24               138.97.248.0/22
    138.97.249.0/24               138.97.248.0/22
    138.97.250.0/24               138.97.248.0/22
    138.97.251.0/24               138.97.248.0/22
    168.196.124.0/24              168.196.124.0/22
    168.196.125.0/24              168.196.124.0/22
    168.196.126.0/24              168.196.124.0/22
    168.196.127.0/24              168.196.124.0/22
    179.51.144.0/24               179.51.144.0/22
    179.51.145.0/24               179.51.144.0/22
    179.51.146.0/24               179.51.144.0/22
    179.51.147.0/24               179.51.144.0/22
    69.79.26.0/24                 69.79.0.0/16

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

    - 69.79.26.0/24               Withdrawn

Whois Entry

whois: 402332

IANA has recorded AS264821 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS264821\n             % Joint Whois - whois.lacnic.net
             %  This server accepts single ASN, IPv4 or IPv6 queries
              
             
             Query rate limit exceeded