Report for 25883

Name

CITIGROUP - Citigroup 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.

25883 CITIGROUP - Citigroup Inc., US

  Adjacency:     3  Upstream:     2  Downstream:     1
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS701           UUNET - Verizon Business, US
  Downstream Adjacent AS list
    AS33463         CITIGROUP-GLOBAL-ANYCAST-DNS - Citigroup Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
18572 AS25883        ORG+TRN Originate:       3584 /20.19  Transit:        256 /24.00 CITIGROUP - Citigroup 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       %
 9964 AS25883       CITIGROUP - Citigroup Inc., US                    14      8      4     10      4  28.57%


  Prefix               AS Path                              Aggregation Suggestion
  192.193.8.0/24       4777 2516 3356 25883   
  192.193.39.0/24      4777 2516 701 25883    
  192.193.40.0/23      4777 2516 3356 25883 + Announce - aggregate of 192.193.40.0/24 (4777 2516 3356 25883) and 192.193.41.0/24 (4777 2516 3356 25883)
  192.193.40.0/24      4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.41.0/24 (4777 2516 3356 25883)
  192.193.41.0/24      4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.40.0/24 (4777 2516 3356 25883)
  192.193.102.0/23     4777 2516 3356 25883 + Announce - aggregate of 192.193.102.0/24 (4777 2516 3356 25883) and 192.193.103.0/24 (4777 2516 3356 25883)
  192.193.102.0/24     4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.103.0/24 (4777 2516 3356 25883)
  192.193.103.0/24     4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.102.0/24 (4777 2516 3356 25883)
  192.193.104.0/23     4777 2516 3356 25883 + Announce - aggregate of 192.193.104.0/24 (4777 2516 3356 25883) and 192.193.105.0/24 (4777 2516 3356 25883)
  192.193.104.0/24     4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.105.0/24 (4777 2516 3356 25883)
  192.193.105.0/24     4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.104.0/24 (4777 2516 3356 25883)
  192.193.171.0/24     4777 2516 701 25883    
  192.193.178.0/23     4777 2516 3356 25883 + Announce - aggregate of 192.193.178.0/24 (4777 2516 3356 25883) and 192.193.179.0/24 (4777 2516 3356 25883)
  192.193.178.0/24     4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.179.0/24 (4777 2516 3356 25883)
  192.193.179.0/24     4777 2516 3356 25883 - Withdrawn - aggregated with 192.193.178.0/24 (4777 2516 3356 25883)
  192.193.185.0/24     4777 2516 3356 25883   
  192.193.222.0/24     4777 2516 701 25883    
  199.67.180.0/24      4777 2516 3356 25883   

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

AS25883   14 More Specifics   14 Total Advertisements   CITIGROUP - Citigroup Inc., US
    192.193.8.0/24                192.193.0.0/16
    192.193.39.0/24               192.193.0.0/16
    192.193.40.0/24               192.193.0.0/16
    192.193.41.0/24               192.193.0.0/16
    192.193.102.0/24              192.193.0.0/16
    192.193.103.0/24              192.193.0.0/16
    192.193.104.0/24              192.193.0.0/16
    192.193.105.0/24              192.193.0.0/16
    192.193.171.0/24              192.193.0.0/16
    192.193.178.0/24              192.193.0.0/16
    192.193.179.0/24              192.193.0.0/16
    192.193.185.0/24              192.193.0.0/16
    192.193.222.0/24              192.193.0.0/16
    199.67.180.0/24               199.67.128.0/18

Whois Entry

whois: 402628

IANA has recorded AS25883 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS25883\n