Report for 61731

Name

Work 349 Internet Provedores ltda - ME, 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.

61731 Work 349 Internet Provedores ltda - ME, BR

  Adjacency:     3  Upstream:     2  Downstream:     1
  Upstream Adjacent AS list
    AS6939          HURRICANE - Hurricane Electric LLC, US
    AS15830         EQUINIX, NL
  Downstream Adjacent AS list
    AS268209        FENIX TELECOM, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
25905 AS61731        ORG+TRN Originate:       2048 /21.00  Transit:        512 /23.00 Work 349 Internet Provedores ltda - ME, 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       %
13602 AS61731       Work 349 Internet Provedores ltda - ME, BR         5      4      1      2      3  60.00%


  Prefix               AS Path                              Aggregation Suggestion
  131.72.160.0/22      4777 2497 3356 15830 61731 61731 61731   
  131.72.160.0/22      4608 4826 6939 61731 + Announce - aggregate of 131.72.160.0/23 (4608 4826 6939 61731) and 131.72.162.0/23 (4608 4826 6939 61731)
  131.72.160.0/24      4608 4826 6939 61731 - Withdrawn - aggregated with 131.72.161.0/24 (4608 4826 6939 61731)
  131.72.161.0/24      4608 4826 6939 61731 - Withdrawn - aggregated with 131.72.160.0/24 (4608 4826 6939 61731)
  131.72.162.0/24      4608 4826 6939 61731 - Withdrawn - aggregated with 131.72.163.0/24 (4608 4826 6939 61731)
  131.72.163.0/24      4608 4826 6939 61731 - Withdrawn - aggregated with 131.72.162.0/24 (4608 4826 6939 61731)

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

AS61731   4 More Specifics   5 Total Advertisements   Work 349 Internet Provedores ltda - ME, BR
    131.72.160.0/24               131.72.160.0/22
    131.72.161.0/24               131.72.160.0/22
    131.72.162.0/24               131.72.160.0/22
    131.72.163.0/24               131.72.160.0/22

Whois Entry

whois: 402332

IANA has recorded AS61731 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS61731\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.
             % 2026-04-01T08:44:15-03:00 - 2401:2000:6660::13
             
             aut-num:     AS61731
             owner:       Work 349 Internet Provedores ltda - ME
             ownerid:     40.287.856/0001-04
             responsible: Marcelo Costa Marques
             country:     BR
             owner-c:     MACMA864
             routing-c:   MACMA864
             abuse-c:     MACMA864
             created:     20140804
             changed:     20240605
             inetnum:     131.72.160.0/22
             inetnum:     2804:1b7c::/32
             as-in:       from AS15830 100 accept ANY
             as-in:       from AS268209 100 accept ANY
             as-out:      to AS15830 announce AS61731
             as-out:      to AS268209 announce AS61731
             
             nic-hdl-br:  MACMA864
             person:      Marcelo Costa Marques
             e-mail:      nucleo.mcm@gmail.com
             country:     BR
             created:     20161113
             changed:     20251217
             
             % 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.