Report for 264401

Name

AS264401 - CSU CARDSYSTEM S.A, BR

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.

264401 AS264401 - CSU CARDSYSTEM S.A, BR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS10429         AS10429 - TELEFONICA BRASIL S.A, BR
    AS4230          AS4230 - CLARO S.A., BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
27038 AS264401       ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  AS264401 - CSU CARDSYSTEM S.A, BR

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       %
28250 AS264401      AS264401 - CSU CARDSYSTEM S.A, BR                  3      1      0      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  131.161.212.0/22     4777 2516 4230 264401   
  131.161.212.0/23     4777 2516 4230 264401 - Withdrawn - matching aggregate 131.161.212.0/22 4777 2516 4230 264401
  131.161.214.0/23     4608 1221 4637 12956 10429 264401   

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

AS264401   2 More Specifics   3 Total Advertisements   AS264401 - CSU CARDSYSTEM S.A, BR
    131.161.212.0/23              131.161.212.0/22
    131.161.214.0/23              131.161.212.0/22

Whois Entry

whois: 402617

IANA has recorded AS264401 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS264401\n             % IP Client: 2401:2000:6660::13
              % Copyright (c) Nic.br - Use of this data is governed by the Use and
             % Privacy Policy at https://registro.br/upp . Distribution,
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             % 2026-06-13T03:10:06-03:00 - 2401:2000:6660::13
             
             aut-num:     AS264401
             owner:       CSU CARDSYSTEM S.A
             ownerid:     01.896.779/0001-38
             responsible: CSU Cardsystem S.A
             country:     BR
             owner-c:     CECCA81
             routing-c:   CECCA81
             abuse-c:     CECCA81
             created:     20141006
             changed:     20211116
             inetnum:     131.161.212.0/22
             inetnum:     2804:1de4::/32
             
             nic-hdl-br:  CECCA81
             person:      Centro de Comando Cardsystem
             e-mail:      suporte.csc@csu.com.br
             country:     BR
             created:     20190711
             changed:     20250417
             
             % Security and mail abuse issues should also be addressed to cert.br,
             % respectivelly to cert@cert.br and mail-abuse@cert.br
             %
             % whois.registro.br only accepts exact match queries for domains,
             % registrants, contacts, tickets, providers, IPs, and ASNs.