Report for 42579

Name

SARGASSO-EU-AS, GB

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.

42579 SARGASSO-EU-AS, GB

  Adjacency:     2  Upstream:     1  Downstream:     1
  Upstream Adjacent AS list
    AS2914          NTT-DATA-2914 - NTT America, Inc., US
  Downstream Adjacent AS list
    AS51983         SARGASSO-DE-AS, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11814 AS42579        ORG+TRN Originate:       8192 /19.00  Transit:        512 /23.00 SARGASSO-EU-AS, GB

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       %
10063 AS42579       SARGASSO-EU-AS, GB                                 6      4      0      2      4  66.67%


  Prefix               AS Path                              Aggregation Suggestion
  77.73.144.0/21       4777 2497 2914 42579   
  77.73.144.0/22       4777 2497 2914 42579 - Withdrawn - matching aggregate 77.73.144.0/21 4777 2497 2914 42579
  77.73.148.0/22       4777 2497 2914 42579 - Withdrawn - matching aggregate 77.73.144.0/21 4777 2497 2914 42579
  78.158.64.0/21       4777 2497 2914 42579   
  78.158.64.0/22       4777 2497 2914 42579 - Withdrawn - matching aggregate 78.158.64.0/21 4777 2497 2914 42579
  78.158.68.0/22       4777 2497 2914 42579 - Withdrawn - matching aggregate 78.158.64.0/21 4777 2497 2914 42579

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

AS42579   4 More Specifics   6 Total Advertisements   SARGASSO-EU-AS, GB
    77.73.144.0/22                77.73.144.0/21
    77.73.148.0/22                77.73.144.0/21
    78.158.64.0/22                78.158.64.0/21
    78.158.68.0/22                78.158.64.0/21

Whois Entry

whois: 402332

IANA has recorded AS42579 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS42579\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)