Report for 20520

Name

--No AS Description--

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.

20520 CENTRIC-ACC Centric Telecom Ltd is a

  Adjacency:     8  Upstream:     2  Downstream:     6
  Upstream Adjacent AS list
    AS3356    LEVEL3 Level 3 Communications
    AS6461    MFNX MFN - Metromedia Fiber Network
  Downstream Adjacent AS list
    AS28959   VITOL-AS AS for Vitol Group
    AS33001   CRAVATH-SWAINE-AS Cravath Swaine and Moore AS
    AS39568   CAPREG-AS Capital Regional AS No
    AS39933   MOORE-EURO-CAP-AS Moore Europe Capital Management Ltd
    AS35405   MACQUARIEBANKNET-EU-AS Macquarie Bank internet network European AS number
    AS15639   uk.diexnet AS for London UK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4845  AS20520  ORG+TRN Originate:      17152 /17.93  Transit:       9984 /18.71 CENTRIC-ACC Centric Telecom Ltd is a

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       %
13298 AS20520 CENTRIC-ACC Centric Telecom Ltd is a          5      0      0      5      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  83.217.96.0/19       4637 3356 20520        
  193.108.191.0/24     4637 3356 20520        
  193.142.119.0/24     4637 3356 20520        
  198.84.41.0/24       4637 3356 20520        
  217.150.96.0/19      4637 3356 20520        

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

AS20520   1 More Specifics   5 Total Advertisements   CENTRIC-ACC Centric Telecom Ltd is a
    198.84.41.0/24                198.84.32.0/20

Whois Entry

whois: 402603

IANA has recorded AS20520 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20520\n             % This is the RIPE Database query service.
             % The objects are in RPSL format.
             %
             % The RIPE Database is subject to Terms and Conditions.
             % See https://docs.db.ripe.net/terms-conditions.html
             
             % Note: this output has been filtered.
             
             % Information related to 'AS20485 - AS20857'
             
             as-block:       AS20485 - AS20857
             descr:          RIPE NCC ASN block
             remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
             mnt-by:         RIPE-NCC-HM-MNT
             created:        2018-11-22T15:27:27Z
             last-modified:  2018-11-22T15:27:27Z
             source:         RIPE
             
             % This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)