Report for 53083

Name

AS53083 - C & M Software 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.

53083 AS53083 - C & M Software Ltda., BR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS17222         AS17222 - MUNDIVOX DO BRASIL LTDA, BR
    AS4230          AS4230 - CLARO S.A., BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
10261 AS53083        ORIGIN  Originate:       9984 /18.71  Transit:          0 /0.00  AS53083 - C & M Software 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       %
 8845 AS53083       AS53083 - C & M Software Ltda., BR                 8      5      0      3      5  62.50%


  Prefix               AS Path                              Aggregation Suggestion
  187.33.112.0/20      4777 2516 4230 53083   
  187.33.112.0/21      4777 2516 4230 53083 - Withdrawn - matching aggregate 187.33.112.0/20 4777 2516 4230 53083
  187.33.112.0/23      4777 2516 4230 53083 - Withdrawn - matching aggregate 187.33.112.0/20 4777 2516 4230 53083
  187.33.112.0/24      4608 7575 7195 17222 53083   
  187.33.113.0/24      4777 2516 4230 53083 - Withdrawn - matching aggregate 187.33.112.0/20 4777 2516 4230 53083
  187.33.114.0/23      4777 2516 4230 53083 - Withdrawn - matching aggregate 187.33.112.0/20 4777 2516 4230 53083
  187.33.120.0/21      4777 2516 4230 53083 - Withdrawn - matching aggregate 187.33.112.0/20 4777 2516 4230 53083
  187.33.124.0/24      4608 7575 7195 17222 53083   

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

AS53083   7 More Specifics   8 Total Advertisements   AS53083 - C & M Software Ltda., BR
    187.33.112.0/21               187.33.112.0/20
    187.33.112.0/23               187.33.112.0/20
    187.33.112.0/24               187.33.112.0/20
    187.33.113.0/24               187.33.112.0/20
    187.33.114.0/23               187.33.112.0/20
    187.33.120.0/21               187.33.112.0/20
    187.33.124.0/24               187.33.112.0/20

Whois Entry

whois: 402638

IANA has recorded AS53083 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS53083\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.
             % 2026-06-18T00:28:01-03:00 - 2401:2000:6660::13
             
             aut-num:     AS53083
             owner:       C & M Software Ltda.
             ownerid:     03.215.009/0001-08
             responsible: Suporte CM Software
             country:     BR
             owner-c:     SUDCM
             routing-c:   SUDCM
             abuse-c:     SUDCM
             created:     20091014
             changed:     20230821
             inetnum:     187.33.112.0/20
             as-in:       from AS4230 50 accept AS4230
             as-in:       from AS22381 50 accept AS22381
             as-in:       from AS17222 50 accept AS17222
             as-in:       from AS10429 50 accept AS10429
             as-in:       from AS4230 150 accept ANY
             as-in:       from AS22381 150 accept ANY
             as-in:       from AS17222 150 accept ANY
             as-in:       from AS10429 150 accept ANY
             as-out:      to AS4230 announce AS53083
             as-out:      to AS22381 announce AS53083
             as-out:      to AS17222 announce AS53083
             as-out:      to AS10429 announce AS53083
             
             nic-hdl-br:  SUDCM
             person:      Suporte Dominios CM
             e-mail:      dominio@cmsw.com
             country:     BR
             created:     20080721
             changed:     20251209
             
             % 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.