Report for 203821

Name

IT4-POLSKA - IT4 Polska Sp. z o.o., PL

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.

203821 IT4-POLSKA, PL

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS201054        EPIX-POLMIX, PL
    AS62081         EPIX-WAW-GLOBALMIX, PL

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
46607 AS203821       ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  IT4-POLSKA, PL

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       %
27253 AS203821      IT4-POLSKA, PL                                     3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  91.207.184.0/23      3303 201054 203821 203821 + Announce - aggregate of 91.207.184.0/24 (3303 201054 203821 203821) and 91.207.185.0/24 (3303 201054 203821 203821)
  91.207.184.0/24      3303 201054 203821 203821 - Withdrawn - aggregated with 91.207.185.0/24 (3303 201054 203821 203821)
  91.207.185.0/24      3303 201054 203821 203821 - Withdrawn - aggregated with 91.207.184.0/24 (3303 201054 203821 203821)
  217.28.134.0/24      3303 201054 203821 203821   

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

AS203821   2 More Specifics   3 Total Advertisements   IT4-POLSKA, PL
    91.207.184.0/24               91.207.184.0/23
    91.207.185.0/24               91.207.184.0/23

Whois Entry

whois: 402551

IANA has recorded AS203821 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS203821\n