Report for 266124

Name

AS266124 - AtivaNet Telecom 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 AS6447) 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.

266124 Marcio Eiji Yasue - ME, BR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS267973        G.V.R. TELECOMUNICACOES E SERVICOS LTDA - ME, BR
    AS274685        HS TELECOMUNICACAO E TECNOLOGIA LTDA, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
20918 AS266124       ORIGIN  Originate:       3072 /20.42  Transit:          0 /0.00  Marcio Eiji Yasue - 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       %
14808 AS266124      Marcio Eiji Yasue - ME, BR                         7      3      0      4      3  42.86%


  Prefix               AS Path                              Aggregation Suggestion
  45.5.240.0/22        7018 3356 262355 274685 266124   
  45.5.240.0/23        7018 3356 262355 274685 266124 - Withdrawn - matching aggregate 45.5.240.0/22 7018 3356 262355 274685 266124
  45.5.240.0/24        3549 3356 262355 274685 266124   
  45.5.241.0/24        6939 52320 8167 267973 266124   
  45.5.242.0/23        7018 3356 262355 274685 266124 - Withdrawn - matching aggregate 45.5.240.0/22 7018 3356 262355 274685 266124
  45.5.242.0/24        7018 3356 262355 274685 266124 - Withdrawn - matching aggregate 45.5.240.0/22 7018 3356 262355 274685 266124
  45.5.243.0/24        3549 3356 262355 274685 266124   

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

AS266124   6 More Specifics   7 Total Advertisements   Marcio Eiji Yasue - ME, BR
    45.5.240.0/23                 45.5.240.0/22
    45.5.240.0/24                 45.5.240.0/22
    45.5.241.0/24                 45.5.240.0/22
    45.5.242.0/23                 45.5.240.0/22
    45.5.242.0/24                 45.5.240.0/22
    45.5.243.0/24                 45.5.240.0/22

Whois Entry

whois: 402603

IANA has recorded AS266124 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS266124\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.
             % 2026-06-10T09:20:02-03:00 - 2401:2000:6660::13
             
             aut-num:     AS266124
             owner:       AtivaNet Telecom Ltda
             ownerid:     00.746.407/0001-62
             responsible: Marcio Eiji Yasue
             country:     BR
             owner-c:     MEY
             routing-c:   MEY
             abuse-c:     MEY
             created:     20170330
             changed:     20191112
             inetnum:     45.5.240.0/22
             inetnum:     2804:3b04::/32
             
             nic-hdl-br:  MEY
             person:      Marcio Eiji Yasue
             e-mail:      eijiyasue@hotmail.com
             country:     BR
             created:     19980525
             changed:     20251111
             
             % 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.