Report for 274523

Name

AS274523 - GIN FIBRA 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.

274523 AS274523 - GIN FIBRA INTERNET LTDA, BR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS53181         AS53181 - Avanca Telecom e Servicos LTDA, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
29798 AS274523       ORIGIN  Originate:       1792 /21.19  Transit:          0 /0.00  AS274523 - GIN FIBRA 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       %
19985 AS274523      AS274523 - GIN FIBRA INTERNET LTDA, BR             4      3      1      2      2  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  138.255.56.0/22      4608 7575 2914 13786 53181 274523   
  138.255.56.0/23      4608 7575 2914 13786 53181 274523 274523 + Announce - aggregate of 138.255.56.0/24 (4608 7575 2914 13786 53181 274523 274523) and 138.255.57.0/24 (4608 7575 2914 13786 53181 274523 274523)
  138.255.56.0/24      4608 7575 2914 13786 53181 274523 274523 - Withdrawn - aggregated with 138.255.57.0/24 (4608 7575 2914 13786 53181 274523 274523)
  138.255.57.0/24      4608 7575 2914 13786 53181 274523 274523 - Withdrawn - aggregated with 138.255.56.0/24 (4608 7575 2914 13786 53181 274523 274523)
  138.255.58.0/24      4608 7575 2914 13786 53181 274523 - Withdrawn - matching aggregate 138.255.56.0/22 4608 7575 2914 13786 53181 274523

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

AS274523   3 More Specifics   4 Total Advertisements   AS274523 - GIN FIBRA INTERNET LTDA, BR
    138.255.56.0/24               138.255.56.0/22
    138.255.57.0/24               138.255.56.0/22
    138.255.58.0/24               138.255.56.0/22

Whois Entry

whois: 402628

IANA has recorded AS274523 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS274523\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.
             % 2026-06-16T18:20:00-03:00 - 2401:2000:6660::13
             
             aut-num:     AS274523
             owner:       GIN FIBRA INTERNET LTDA
             ownerid:     53.932.197/0001-63
             responsible: Nattan de Almeida rosa
             country:     BR
             owner-c:     NAARO85
             routing-c:   NAARO85
             abuse-c:     NAARO85
             created:     20250826
             changed:     20250826
             inetnum:     2804:9570::/32
             inetnum:     138.255.56.0/22
             
             nic-hdl-br:  NAARO85
             person:      nattan de almeida rosa
             e-mail:      nattan@toplinkbrasil.com.br
             country:     BR
             created:     20250714
             changed:     20250910
             
             % 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.