Report for 28257

Name

AS28257 - CONCEITOS NET SERVICOS DE COMUNICACAO E MULTIMIDIA, 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.

28257 AS28257 - CONCEITOS NET SERVICOS DE COMUNICACAO E MULTIMIDIA, BR

  Adjacency:     4  Upstream:     2  Downstream:     2
  Upstream Adjacent AS list
    AS264564        AS264564 - Telecab Telecomunicacoes Ltda, BR
    AS12956         IDDQD-AS - IDDQD-AS, ES
  Downstream Adjacent AS list
    AS266363        AS266363 - G & M SERVICOS DE COMUNICACAO E MULTIMIDIA LTDA-ME, BR
    AS268975        AS268975 - GLOBAL TELECOM SERVICOS DE COMUNICACAO E MULTIMIDI, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
12538 AS28257        ORG+TRN Originate:       7424 /19.14  Transit:       2048 /21.00 AS28257 - CONCEITOS NET SERVICOS DE COMUNICACAO E MULTIMIDIA, 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       %
38156 AS28257       AS28257 - CONCEITOS NET SERVICOS DE COMUNICAC      4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  138.36.140.0/22      4777 2497 3356 61832 264564 264564 28257   
  177.129.40.0/21      4777 2497 3356 61832 264564 264564 28257   
  177.129.41.0/24      4608 1221 4637 12956 28257 28257 28257 28257   
  186.225.80.0/20      4777 2497 3356 61832 264564 264564 28257   

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

AS28257   1 More Specifics   4 Total Advertisements   AS28257 - CONCEITOS NET SERVICOS DE COMUNICACAO E MULTIMIDIA, BR
    177.129.41.0/24               177.129.40.0/21

Whois Entry

whois: 402603

IANA has recorded AS28257 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28257\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.
             % 2026-06-09T15:40:07-03:00 - 2401:2000:6660::13
             
             aut-num:     AS28257
             owner:       CONCEITOS NET SERVICOS DE COMUNICACAO E MULTIMIDIA
             ownerid:     05.548.307/0001-45
             responsible: GEILSON DE SOUSA ARAUJO
             country:     BR
             owner-c:     GESAR4
             routing-c:   EDALM66
             abuse-c:     EDALM66
             created:     20130502
             changed:     20220314
             inetnum:     177.129.40.0/21
             inetnum:     2804:db4::/32
             inetnum:     138.36.140.0/22
             inetnum:     186.225.80.0/20
             as-in:       from AS61832 100 accept ANY
             as-in:       from AS26162 100 accept ANY
             as-in:       from AS264564 100 accept ANY
             as-out:      to AS61832 announce AS28257
             as-out:      to AS26162 announce AS28257
             as-out:      to AS264564 announce AS28257
             as-out:      to AS268975 announce ANY
             as-out:      to AS266363 announce ANY
             
             nic-hdl-br:  GESAR4
             person:      geilson de sousa araujo
             e-mail:      geilson@conceitosinformatica.com.br
             country:     BR
             created:     20080428
             changed:     20240406
             
             nic-hdl-br:  EDALM66
             person:      Edsongley Almeida
             e-mail:      edsongley@gmail.com
             country:     BR
             created:     20120814
             changed:     20241230
             
             % 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.