Report for 263524

Name

AS263524 - Ciabrasnet - Central Brasileira de Internet 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.

263524 AS263524 - Ciabrasnet - Central Brasileira de Internet Ltda, BR

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS262847        AS262847 - DBUG TELECOM LTDA, BR
    AS53062         AS53062 - ALT  GRUPO BRASIL TECPAR, BR
    AS52587         AS52587 - iFIBRA TELECOM, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
16511 AS263524       ORIGIN  Originate:       4352 /19.91  Transit:          0 /0.00  AS263524 - Ciabrasnet - Central Brasileira de Internet 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       %
14336 AS263524      AS263524 - Ciabrasnet - Central Brasileira de      8      4      1      5      3  37.50%


  Prefix               AS Path                              Aggregation Suggestion
  191.253.24.0/21      4777 2497 3356 53062 263524   
  191.253.24.0/24      4777 2497 3356 53062 263524 - Withdrawn - matching aggregate 191.253.24.0/21 4777 2497 3356 53062 263524
  191.253.25.0/24      4777 6939 264409 52587 263524   
  191.253.26.0/23      4777 2497 3356 53062 263524 - Withdrawn - matching aggregate 191.253.24.0/21 4777 2497 3356 53062 263524
  191.253.26.0/23      4777 2497 3356 262847 263524 + Announce - aggregate of 191.253.26.0/24 (4777 2497 3356 262847 263524) and 191.253.27.0/24 (4777 2497 3356 262847 263524)
  191.253.26.0/24      4777 2497 3356 262847 263524 - Withdrawn - aggregated with 191.253.27.0/24 (4777 2497 3356 262847 263524)
  191.253.27.0/24      4777 2497 3356 262847 263524 - Withdrawn - aggregated with 191.253.26.0/24 (4777 2497 3356 262847 263524)
  191.253.28.0/23      4777 2497 3356 262847 263524   
  191.253.29.0/24      4777 2497 3356 53062 263524   

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

AS263524   7 More Specifics   8 Total Advertisements   AS263524 - Ciabrasnet - Central Brasileira de Internet Ltda, BR
    191.253.24.0/24               191.253.24.0/21
    191.253.25.0/24               191.253.24.0/21
    191.253.26.0/23               191.253.24.0/21
    191.253.26.0/24               191.253.24.0/21
    191.253.27.0/24               191.253.24.0/21
    191.253.28.0/23               191.253.24.0/21
    191.253.29.0/24               191.253.24.0/21

Whois Entry

whois: 402591

IANA has recorded AS263524 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS263524\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.
             % 2026-06-05T08:00:00-03:00 - 2401:2000:6660::13
             
             aut-num:     AS263524
             owner:       Ciabrasnet - Central Brasileira de Internet Ltda
             ownerid:     10.731.345/0001-79
             responsible: Julio Cezar Araujo
             country:     BR
             owner-c:     JUCAR219
             routing-c:   JUCAR219
             abuse-c:     JUCAR219
             created:     20140113
             changed:     20200219
             inetnum:     191.253.24.0/21
             inetnum:     2804:1340::/32
             as-in:       from AS53062 100 accept ANY
             as-out:      to AS53062 announce AS263524
             
             nic-hdl-br:  JUCAR219
             person:      Julio Cezar Araujo
             e-mail:      julio@ciabrasnet.com.br
             country:     BR
             created:     20130511
             changed:     20201208
             
             % 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.