Report for 27321

Name

ISC-F-AS - Internet Systems Consortium, 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 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.

27321 ISC-F-AS - Internet Systems Consortium, Inc., US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6939          HURRICANE - Hurricane Electric LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
28848 AS27321        ORIGIN  Originate:       1792 /21.19  Transit:          0 /0.00  ISC-F-AS - Internet Systems Consortium, Inc., 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       %
16206 AS27321       ISC-F-AS - Internet Systems Consortium, Inc.,      7      4      2      5      2  28.57%


  Prefix               AS Path                              Aggregation Suggestion
  149.20.2.0/23        4608 6939 27321      + Announce - aggregate of 149.20.2.0/24 (4608 6939 27321) and 149.20.3.0/24 (4608 6939 27321)
  149.20.2.0/24        4608 6939 27321      - Withdrawn - aggregated with 149.20.3.0/24 (4608 6939 27321)
  149.20.3.0/24        4608 6939 27321      - Withdrawn - aggregated with 149.20.2.0/24 (4608 6939 27321)
  149.20.4.0/24        4608 6939 27321        
  149.20.57.0/24       4608 6939 27321        
  149.20.66.0/24       4608 6939 27321        
  192.158.248.0/23     4608 6939 27321      + Announce - aggregate of 192.158.248.0/24 (4608 6939 27321) and 192.158.249.0/24 (4608 6939 27321)
  192.158.248.0/24     4608 6939 27321      - Withdrawn - aggregated with 192.158.249.0/24 (4608 6939 27321)
  192.158.249.0/24     4608 6939 27321      - Withdrawn - aggregated with 192.158.248.0/24 (4608 6939 27321)

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

AS27321   7 More Specifics   7 Total Advertisements   ISC-F-AS - Internet Systems Consortium, Inc., US
    149.20.2.0/24                 149.20.0.0/18
    149.20.3.0/24                 149.20.0.0/18
    149.20.4.0/24                 149.20.0.0/18
    149.20.57.0/24                149.20.0.0/18
    149.20.66.0/24                149.20.64.0/22
    192.158.248.0/24              192.158.248.0/22
    192.158.249.0/24              192.158.248.0/22

Whois Entry

whois: 402628

IANA has recorded AS27321 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27321\n