Report for 271404

Name

AS271404 - E-SERV COMUNICACAO 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.

271404 AS271404 - E-SERV COMUNICACAO LTDA., BR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS264409        AS264409 - GRUPO YAX, BR
    AS52468         AS52468 - UFINET PANAMA S.A., PA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
28269 AS271404       ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  AS271404 - E-SERV COMUNICACAO 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       %
29268 AS271404      AS271404 - E-SERV COMUNICACAO LTDA., BR            3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  181.189.28.0/22      4777 2497 174 52468 271404   
  181.189.28.0/22      4777 2516 6762 52468 271404 271404 271404 + Announce - aggregate of 181.189.28.0/23 (4777 2516 6762 52468 271404 271404 271404) and 181.189.30.0/23 (4777 2516 6762 52468 271404 271404 271404)
  181.189.28.0/23      4777 2516 6762 52468 271404 271404 271404 - Withdrawn - aggregated with 181.189.30.0/23 (4777 2516 6762 52468 271404 271404 271404)
  181.189.30.0/23      4777 2516 6762 52468 271404 271404 271404 - Withdrawn - aggregated with 181.189.28.0/23 (4777 2516 6762 52468 271404 271404 271404)

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

AS271404   2 More Specifics   3 Total Advertisements   AS271404 - E-SERV COMUNICACAO LTDA., BR
    181.189.28.0/23               181.189.28.0/22
    181.189.30.0/23               181.189.28.0/22

Whois Entry

whois: 402625

IANA has recorded AS271404 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS271404\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.
             % 2026-06-14T10:45:42-03:00 - 2401:2000:6660::13
             
             aut-num:     AS271404
             owner:       E-SERV COMUNICA��O LTDA.
             ownerid:     10.894.650/0001-81
             responsible: RICARDO JOS� OLIVEIRA NEVES
             country:     BR
             owner-c:     RJN10
             routing-c:   RJN10
             abuse-c:     RJN10
             created:     20200930
             changed:     20250820
             inetnum:     2804:7afc::/32
             inetnum:     181.189.28.0/22
             
             nic-hdl-br:  RJN10
             person:      Ricardo jose oliveira Neves
             e-mail:      ricardo.oliveira.neves@gmail.com
             country:     BR
             created:     20010624
             changed:     20250702
             
             % 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.