Report for 263335

Name

Alternativa Telecom, 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.

263335 Alternativa Telecom, BR

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS61832         DB3 SERVICOS DE TELECOMUNICACOES S.A, BR
    AS4230          CLARO S.A., BR
    AS263541        IMF NETWORK DATA LTDA - ME, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
14078 AS263335       ORIGIN  Originate:       6144 /19.42  Transit:          0 /0.00  Alternativa Telecom, 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       %
28334 AS263335      Alternativa Telecom, BR                            7      2      1      6      1  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  191.36.136.0/21      4777 2516 4230 263335   
  191.36.136.0/22      4777 2516 4230 263335 263335   
  191.36.136.0/22      4777 2516 4230 263335 + Announce - aggregate of 191.36.136.0/23 (4777 2516 4230 263335) and 191.36.138.0/23 (4777 2516 4230 263335)
  191.36.136.0/23      4777 2516 4230 263335 - Withdrawn - aggregated with 191.36.138.0/23 (4777 2516 4230 263335)
  191.36.138.0/23      4777 2516 4230 263335 - Withdrawn - aggregated with 191.36.136.0/23 (4777 2516 4230 263335)
  191.36.140.0/22      4777 2516 4230 263335 263335   
  191.36.140.0/23      4777 2497 3356 61832 263335   
  191.36.142.0/23      4608 7575 7195 28329 263541 263335   

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

AS263335   6 More Specifics   7 Total Advertisements   Alternativa Telecom, BR
    191.36.136.0/22               191.36.136.0/21
    191.36.136.0/23               191.36.136.0/21
    191.36.138.0/23               191.36.136.0/21
    191.36.140.0/22               191.36.136.0/21
    191.36.140.0/23               191.36.136.0/21
    191.36.142.0/23               191.36.136.0/21

Whois Entry

whois: 402332

IANA has recorded AS263335 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS263335\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.
             % 2026-04-01T11:06:15-03:00 - 2401:2000:6660::13
             
             aut-num:     AS263335
             owner:       Alternativa Telecom
             ownerid:     01.857.112/0001-26
             responsible: Renata Pezzin
             country:     BR
             owner-c:     ALTEL42
             routing-c:   ALTEL42
             abuse-c:     ALTEL42
             created:     20140313
             changed:     20160822
             inetnum:     191.36.136.0/21
             inetnum:     2804:1484::/32
             
             nic-hdl-br:  ALTEL42
             person:      Alternativa Telecomunica��es
             e-mail:      financeiro@jetzinternet.com.br
             country:     BR
             created:     20141029
             changed:     20240618
             
             % 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.