Report for 28269

Name

AS28269 - COMPUTADORES E SISTEMAS LTDA, 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.

28269 AS28269 - COMPUTADORES E SISTEMAS LTDA, BR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11759 AS28269        ORIGIN  Originate:       8192 /19.00  Transit:          0 /0.00  AS28269 - COMPUTADORES E SISTEMAS LTDA, 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       %
 8617 AS28269       AS28269 - COMPUTADORES E SISTEMAS LTDA, BR         9      7      2      4      5  55.56%


  Prefix               AS Path                              Aggregation Suggestion
  187.18.0.0/20        4777 2497 3356 28269   
  187.18.0.0/23        4777 2497 3356 28269 - Withdrawn - matching aggregate 187.18.0.0/20 4777 2497 3356 28269
  187.18.2.0/23        4777 2516 3356 28269   
  187.18.4.0/22        4777 2516 3356 28269 + Announce - aggregate of 187.18.4.0/23 (4777 2516 3356 28269) and 187.18.6.0/23 (4777 2516 3356 28269)
  187.18.4.0/23        4777 2516 3356 28269 - Withdrawn - aggregated with 187.18.6.0/23 (4777 2516 3356 28269)
  187.18.6.0/23        4777 2516 3356 28269 - Withdrawn - aggregated with 187.18.4.0/23 (4777 2516 3356 28269)
  187.18.8.0/21        4777 2516 3356 28269 + Announce - aggregate of 187.18.8.0/22 (4777 2516 3356 28269) and 187.18.12.0/22 (4777 2516 3356 28269)
  187.18.8.0/23        4777 2516 3356 28269 - Withdrawn - aggregated with 187.18.10.0/23 (4777 2516 3356 28269)
  187.18.10.0/23       4777 2516 3356 28269 - Withdrawn - aggregated with 187.18.8.0/23 (4777 2516 3356 28269)
  187.18.12.0/23       4777 2516 3356 28269 - Withdrawn - aggregated with 187.18.14.0/23 (4777 2516 3356 28269)
  187.18.14.0/23       4777 2516 3356 28269 - Withdrawn - aggregated with 187.18.12.0/23 (4777 2516 3356 28269)

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

AS28269   8 More Specifics   9 Total Advertisements   AS28269 - COMPUTADORES E SISTEMAS LTDA, BR
    187.18.0.0/23                 187.18.0.0/20
    187.18.2.0/23                 187.18.0.0/20
    187.18.4.0/23                 187.18.0.0/20
    187.18.6.0/23                 187.18.0.0/20
    187.18.8.0/23                 187.18.0.0/20
    187.18.10.0/23                187.18.0.0/20
    187.18.12.0/23                187.18.0.0/20
    187.18.14.0/23                187.18.0.0/20

Whois Entry

whois: 402625

IANA has recorded AS28269 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28269\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,
             % commercialization, reproduction, and use for advertising or similar
             % purposes are expressly prohibited.
             % 2026-06-14T04:56:07-03:00 - 2401:2000:6660::13
             
             aut-num:     AS28269
             owner:       COMPUTADORES E SISTEMAS LTDA
             ownerid:     97.356.653/0001-40
             responsible: Jairo Takenami
             country:     BR
             owner-c:     JAT10
             routing-c:   JAT10
             abuse-c:     JAT10
             created:     20081201
             changed:     20130306
             inetnum:     187.18.0.0/20
             inetnum:     2804:8d0::/32
             
             nic-hdl-br:  JAT10
             person:      Jairo Takenami
             e-mail:      jairo@compos.net.br
             country:     BR
             created:     19980424
             changed:     20211213
             
             % 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.