Report for 52561

Name

AS52561 - GFOUR TELECOM, BR

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.

52561 GFOUR TELECOM, BR

  Adjacency:     3  Upstream:     2  Downstream:     1
  Upstream Adjacent AS list
    AS264343        Empasoft Ltda .Me, BR
    AS274685        HS TELECOMUNICACAO E TECNOLOGIA LTDA, BR
  Downstream Adjacent AS list
    AS268570        YASUMITSU & YASUMITSU LTDA ME, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
17497 AS52561        ORG+TRN Originate:       4096 /20.00  Transit:       2048 /21.00 GFOUR TELECOM, BR

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       %
13294 AS52561       GFOUR TELECOM, BR                                  6      4      1      3      3  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  177.86.76.0/22       3303 262355 274685 52561 52561 52561   
  177.86.76.0/23       3303 262355 274685 52561 52561 52561 - Withdrawn - matching aggregate 177.86.76.0/22 3303 262355 274685 52561 52561 52561
  177.86.78.0/23       3303 262355 274685 52561 52561 52561 - Withdrawn - matching aggregate 177.86.76.0/22 3303 262355 274685 52561 52561 52561
  186.227.120.0/22     3303 262355 264343 264343 264343 264343 52561   
  186.227.120.0/22     3303 262355 274685 52561 52561 52561 52561 52561 + Announce - aggregate of 186.227.120.0/23 (3303 262355 274685 52561 52561 52561 52561 52561) and 186.227.122.0/23 (3303 262355 274685 52561 52561 52561 52561 52561)
  186.227.120.0/23     3303 262355 274685 52561 52561 52561 52561 52561 - Withdrawn - aggregated with 186.227.122.0/23 (3303 262355 274685 52561 52561 52561 52561 52561)
  186.227.122.0/23     3303 262355 274685 52561 52561 52561 52561 52561 - Withdrawn - aggregated with 186.227.120.0/23 (3303 262355 274685 52561 52561 52561 52561 52561)

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

AS52561   4 More Specifics   6 Total Advertisements   GFOUR TELECOM, BR
    177.86.76.0/23                177.86.76.0/22
    177.86.78.0/23                177.86.76.0/22
    186.227.120.0/23              186.227.120.0/22
    186.227.122.0/23              186.227.120.0/22

Whois Entry

whois: 402551

IANA has recorded AS52561 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS52561\n