Report for 274743

Name

FASTWEB TELECOMUNICACOES, 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.

274743 FASTWEB TELECOMUNICACOES, BR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS52468         UFINET PANAMA S.A., PA
    AS28649         Desktop Sigmanet Comunicacao Multimidia SA, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
43490 AS274743       ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  FASTWEB TELECOMUNICACOES, 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       %
72585 AS274743      FASTWEB TELECOMUNICACOES, BR                       3      0      0      3      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  186.251.212.0/23     4777 2497 174 52468 274743   
  186.251.212.0/24     4777 2497 174 52468 274743 274743   
  186.251.213.0/24     4777 2497 2914 268624 22356 28649 274743 274743   

Whois Entry

whois: 402332

IANA has recorded AS274743 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS274743\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.
             % 2026-04-01T22:00:15-03:00 - 2401:2000:6660::13
             
             aut-num:     AS274743
             owner:       FASTWEB TELECOMUNICACOES
             ownerid:     10.552.048/0001-66
             responsible: Daniel Brito Pereira
             country:     BR
             owner-c:     DABPE186
             routing-c:   DABPE186
             abuse-c:     DABPE186
             created:     20250129
             changed:     20250129
             inetnum:     2804:92ec::/32
             inetnum:     186.251.212.0/24
             inetnum:     186.251.213.0/24
             
             nic-hdl-br:  DABPE186
             person:      Daniel Brito Pereira
             e-mail:      britocs820@gmail.com
             country:     BR
             created:     20241206
             changed:     20250804
             
             % 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.