Report for 273703

Name

AS273703 - Atlanti Engenharia e Servicos 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 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.

273703 AS273703 - Atlanti Engenharia e Servicos Ltda, BR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS268042        AS268042 - JETNET COMUNICACAO LTDA, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
22920 AS273703       ORIGIN  Originate:       2560 /20.68  Transit:          0 /0.00  AS273703 - Atlanti Engenharia e Servicos Ltda, 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       %
 9502 AS273703      AS273703 - Atlanti Engenharia e Servicos Ltda      6      5      0      1      5  83.33%


  Prefix               AS Path                              Aggregation Suggestion
  131.196.236.0/22     4608 7575 37468 268042 273703   
  131.196.236.0/23     4608 7575 37468 268042 273703 - Withdrawn - matching aggregate 131.196.236.0/22 4608 7575 37468 268042 273703
  131.196.236.0/24     4608 7575 37468 268042 273703 - Withdrawn - matching aggregate 131.196.236.0/22 4608 7575 37468 268042 273703
  131.196.237.0/24     4608 7575 37468 268042 273703 - Withdrawn - matching aggregate 131.196.236.0/22 4608 7575 37468 268042 273703
  131.196.238.0/24     4608 7575 37468 268042 273703 - Withdrawn - matching aggregate 131.196.236.0/22 4608 7575 37468 268042 273703
  131.196.239.0/24     4608 7575 37468 268042 273703 - Withdrawn - matching aggregate 131.196.236.0/22 4608 7575 37468 268042 273703

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

AS273703   5 More Specifics   6 Total Advertisements   AS273703 - Atlanti Engenharia e Servicos Ltda, BR
    131.196.236.0/23              131.196.236.0/22
    131.196.236.0/24              131.196.236.0/22
    131.196.237.0/24              131.196.236.0/22
    131.196.238.0/24              131.196.236.0/22
    131.196.239.0/24              131.196.236.0/22

Whois Entry

whois: 402617

IANA has recorded AS273703 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS273703\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.
             % 2026-06-13T08:12:09-03:00 - 2401:2000:6660::13
             
             aut-num:     AS273703
             owner:       Atlanti Engenharia e Servicos Ltda
             ownerid:     45.519.448/0001-54
             responsible: Ricardo Farias Costa Cristiano
             country:     BR
             owner-c:     RFCCR1
             routing-c:   RFCCR1
             abuse-c:     RFCCR1
             created:     20230306
             changed:     20230306
             inetnum:     2804:8af4::/32
             inetnum:     131.196.236.0/22
             
             nic-hdl-br:  RFCCR1
             person:      ricardo Farias Costa Cristiano
             e-mail:      ricardocostaf@hotmail.com
             country:     BR
             created:     20221118
             changed:     20221118
             
             % 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.