Report for 30020

Name

BENFIELD-2003ASN - BENFIELD HOLDINGS INC, 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.

30020 BENFIELD-2003ASN - BENFIELD HOLDINGS INC

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS21591   NSINOC-KC1 - NETSTANDARD INC
    AS10910   INTERNAP-BLK - Internap Network Services
    AS4323    TWTC - Time Warner Telecom, Inc.

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
13680 AS30020  ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  BENFIELD-2003ASN - BENFIELD 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       %
 4117 AS30020 BENFIELD-2003ASN - BENFIELD HOLDINGS INC      6      4      2      4      2  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  198.184.16.0/23      4637 174 21591 30020 + Announce - aggregate of 198.184.16.0/24 (4637 174 21591 30020) and 198.184.17.0/24 (4637 174 21591 30020)
  198.184.16.0/24      4637 174 21591 30020 - Withdrawn - aggregated with 198.184.17.0/24 (4637 174 21591 30020)
  198.184.17.0/24      4637 174 21591 30020 - Withdrawn - aggregated with 198.184.16.0/24 (4637 174 21591 30020)
  198.184.20.0/23      4637 4323 30020      + Announce - aggregate of 198.184.20.0/24 (4637 4323 30020) and 198.184.21.0/24 (4637 4323 30020)
  198.184.20.0/24      4637 4323 30020      - Withdrawn - aggregated with 198.184.21.0/24 (4637 4323 30020)
  198.184.21.0/24      4637 4323 30020      - Withdrawn - aggregated with 198.184.20.0/24 (4637 4323 30020)
  198.184.23.0/24      4637 3549 10910 30020   
  198.184.24.0/24      4637 174 21591 30020   

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

AS30020   6 More Specifics   6 Total Advertisements   BENFIELD-2003ASN - BENFIELD HOLDINGS INC
    198.184.16.0/24               198.184.16.0/21
    198.184.17.0/24               198.184.16.0/21
    198.184.20.0/24               198.184.16.0/21
    198.184.21.0/24               198.184.16.0/21
    198.184.23.0/24               198.184.16.0/21
    198.184.24.0/24               198.184.24.0/23

Whois Entry

whois: 402332

IANA has recorded AS30020 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS30020\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)