Report for 400940

Name

RAILWAY - Railway, 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 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.

400940 RAILWAY - Railway, US

  Adjacency:     6  Upstream:     6  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS2914          NTT-DATA-2914 - NTT America, Inc., US
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS13335         CLOUDFLARENET - Cloudflare, Inc., US
    AS1299          TWELVE99 Arelion, fka Telia Carrier, SE
    AS3491          PCCWG-APAC-HK PCCW Global HK Ltd., HK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
15645 AS400940       ORIGIN  Originate:       4864 /19.75  Transit:          0 /0.00  RAILWAY - Railway, US

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       %
19905 AS400940      RAILWAY - Railway, US                              8      4      2      6      2  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  66.33.22.0/23        4777 2516 3491 400940   
  66.33.23.0/24        4777 13335 400940      
  152.55.176.0/21      4777 2516 1299 400940 + Announce - aggregate of 152.55.176.0/22 (4777 2516 1299 400940) and 152.55.180.0/22 (4777 2516 1299 400940)
  152.55.176.0/22      4777 2516 1299 400940 - Withdrawn - aggregated with 152.55.180.0/22 (4777 2516 1299 400940)
  152.55.180.0/22      4777 2516 1299 400940 - Withdrawn - aggregated with 152.55.176.0/22 (4777 2516 1299 400940)
  162.220.232.0/22     4777 2516 1299 400940 + Announce - aggregate of 162.220.232.0/23 (4777 2516 1299 400940) and 162.220.234.0/23 (4777 2516 1299 400940)
  162.220.232.0/23     4777 2516 1299 400940 - Withdrawn - aggregated with 162.220.234.0/23 (4777 2516 1299 400940)
  162.220.234.0/23     4777 2516 1299 400940 - Withdrawn - aggregated with 162.220.232.0/23 (4777 2516 1299 400940)
  208.77.244.0/23      4777 2516 1299 400940   
  208.77.246.0/23      4608 7575 3491 400940   

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

AS400940   7 More Specifics   8 Total Advertisements   RAILWAY - Railway, US
    66.33.23.0/24                 66.33.22.0/23
    152.55.176.0/22               152.55.176.0/20
    152.55.180.0/22               152.55.176.0/20
    162.220.232.0/23              162.220.232.0/22
    162.220.234.0/23              162.220.232.0/22
    208.77.244.0/23               208.77.244.0/22
    208.77.246.0/23               208.77.244.0/22

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

    + 152.55.176.0/22             Announced
    + 152.55.180.0/22             Announced

Whois Entry

whois: 402332

IANA has recorded AS400940 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS400940\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-AU5)