Report for 24971

Name

MASTER-AS - MasterDC s.r.o., CZ

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.

24971 MASTER-AS - MasterDC s.r.o., CZ

  Adjacency:     9  Upstream:     2  Downstream:     7
  Upstream Adjacent AS list
    AS9002          RETN-AS - RETN Limited, GB
    AS1299          TWELVE99 - Arelion Sweden AB, SE
  Downstream Adjacent AS list
    AS207167        amccomp-master-brno - mapnet IT services s.r.o., CZ
    AS51134         INTACTO-AS - Development 777 s.r.o., CZ
    AS202857        CZ-AS - INIZIO Internet Media s.r.o., CZ
    AS211085        amccomp-master-praha - mapnet IT services s.r.o., CZ
    AS64481         Dragon-Capital-AS - Joint Venture Dragon Capital LLC, UA
    AS21045         QnetCZ - K-net Technical International Group, s.r.o., CZ
    AS204957        GREENFLOID-AS - GREEN FLOID LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4054  AS24971        ORG+TRN Originate:      58880 /16.15  Transit:       9472 /18.79 MASTER-AS - MasterDC s.r.o., CZ

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       %
16172 AS24971       MASTER-AS - MasterDC s.r.o., CZ                   33      4      2     31      2   6.06%


  Prefix               AS Path                              Aggregation Suggestion
  5.180.200.0/22       4777 2516 1299 24971   
  37.140.220.0/24      4777 2516 1299 24971   
  37.205.8.0/21        4777 2516 1299 24971 + Announce - aggregate of 37.205.8.0/22 (4777 2516 1299 24971) and 37.205.12.0/22 (4777 2516 1299 24971)
  37.205.8.0/22        4777 2516 1299 24971 - Withdrawn - aggregated with 37.205.12.0/22 (4777 2516 1299 24971)
  37.205.12.0/22       4777 2516 1299 24971 - Withdrawn - aggregated with 37.205.8.0/22 (4777 2516 1299 24971)
  77.93.192.0/19       4777 2516 1299 24971   
  80.79.16.0/20        4777 2516 1299 24971   
  81.31.32.0/20        4777 2516 1299 24971   
  83.167.224.0/19      4777 2516 1299 24971   
  83.223.52.0/24       4777 2516 1299 24971   
  85.118.128.0/21      4777 2516 1299 24971   
  89.185.224.0/19      4777 2516 1299 24971   
  91.213.160.0/24      4777 2516 1299 24971   
  91.214.192.0/22      4777 2516 1299 24971   
  91.216.179.0/24      4777 2516 1299 24971   
  91.226.216.0/22      4777 2516 1299 24971   
  92.63.56.0/24        4777 2516 1299 24971   
  130.193.16.0/24      4777 2516 1299 24971   
  149.62.144.0/21      4777 2516 1299 24971   
  176.227.168.0/23     4777 2516 1299 24971   
  178.238.32.0/20      4777 2516 1299 24971   
  185.8.164.0/22       4777 2516 1299 24971 + Announce - aggregate of 185.8.164.0/23 (4777 2516 1299 24971) and 185.8.166.0/23 (4777 2516 1299 24971)
  185.8.164.0/23       4777 2516 1299 24971 - Withdrawn - aggregated with 185.8.166.0/23 (4777 2516 1299 24971)
  185.8.166.0/23       4777 2516 1299 24971 - Withdrawn - aggregated with 185.8.164.0/23 (4777 2516 1299 24971)
  185.25.184.0/22      4777 2516 1299 24971   
  185.32.160.0/22      4777 2516 1299 24971   
  185.58.40.0/22       4777 2516 1299 24971   
  185.85.164.0/22      4777 2516 1299 24971   
  185.145.160.0/22     4777 2516 1299 24971   
  185.239.216.0/22     4777 2516 1299 24971   
  188.213.234.0/23     4777 2516 1299 24971   
  188.215.18.0/23      4777 2516 1299 24971   
  193.169.160.0/23     4777 2516 1299 24971   
  194.145.180.0/22     4777 2516 1299 24971   
  195.140.252.0/22     4777 2516 1299 24971   

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

AS24971   8 More Specifics   33 Total Advertisements   MASTER-AS - MasterDC s.r.o., CZ
    37.205.8.0/22                 37.205.8.0/21
    37.205.12.0/22                37.205.8.0/21
    83.223.52.0/24                83.223.32.0/19
    92.63.56.0/24                 92.63.48.0/20
    130.193.16.0/24               130.193.16.0/21
    176.227.168.0/23              176.227.168.0/21
    185.8.164.0/23                185.8.164.0/22
    185.8.166.0/23                185.8.164.0/22

Whois Entry

whois: 402617

IANA has recorded AS24971 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS24971\n