Report for 262587

Name

AS262587 - CST - Cerentini Solucoes em Tecnologia, 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.

262587 AS262587 - CST - Cerentini Solucoes em Tecnologia, BR

  Adjacency:     4  Upstream:     2  Downstream:     2
  Upstream Adjacent AS list
    AS28283         AS28283 - Adylnet Telecom, BR
    AS16735         AS16735 - ALGAR TELECOM S/A, BR
  Downstream Adjacent AS list
    AS263101        AS263101 - Netmax Tecnologia Ltda, BR
    AS52920         AS52920 - IVOCS INTERNET E COMUNICACAO LTDA, BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
10164 AS262587       ORG+TRN Originate:      10240 /18.68  Transit:      21248 /17.62 AS262587 - CST - Cerentini Solucoes em Tecnologia, 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       %
 5191 AS262587      AS262587 - CST - Cerentini Solucoes em Tecnol     13     10      0      3     10  76.92%


  Prefix               AS Path                              Aggregation Suggestion
  45.238.136.0/22      4777 2516 6762 16735 262587   
  45.238.136.0/23      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 45.238.136.0/22 4777 2516 6762 16735 262587
  45.238.138.0/23      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 45.238.136.0/22 4777 2516 6762 16735 262587
  143.255.184.0/22     4777 2516 6762 16735 262587   
  143.255.184.0/23     4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 143.255.184.0/22 4777 2516 6762 16735 262587
  143.255.186.0/23     4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 143.255.184.0/22 4777 2516 6762 16735 262587
  177.84.144.0/21      4777 2516 6762 16735 262587   
  177.84.144.0/22      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 177.84.144.0/21 4777 2516 6762 16735 262587
  177.84.144.0/23      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 177.84.144.0/21 4777 2516 6762 16735 262587
  177.84.146.0/23      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 177.84.144.0/21 4777 2516 6762 16735 262587
  177.84.148.0/22      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 177.84.144.0/21 4777 2516 6762 16735 262587
  177.84.148.0/23      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 177.84.144.0/21 4777 2516 6762 16735 262587
  177.84.150.0/23      4777 2516 6762 16735 262587 - Withdrawn - matching aggregate 177.84.144.0/21 4777 2516 6762 16735 262587

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

AS262587   10 More Specifics   13 Total Advertisements   AS262587 - CST - Cerentini Solucoes em Tecnologia, BR
    45.238.136.0/23               45.238.136.0/22
    45.238.138.0/23               45.238.136.0/22
    143.255.184.0/23              143.255.184.0/22
    143.255.186.0/23              143.255.184.0/22
    177.84.144.0/22               177.84.144.0/21
    177.84.144.0/23               177.84.144.0/21
    177.84.146.0/23               177.84.144.0/21
    177.84.148.0/22               177.84.144.0/21
    177.84.148.0/23               177.84.144.0/21
    177.84.150.0/23               177.84.144.0/21

Whois Entry

whois: 402609

IANA has recorded AS262587 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS262587\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.
             % 2026-06-11T10:58:41-03:00 - 2401:2000:6660::13
             
             aut-num:     AS262587
             owner:       CST - Cerentini Solu��es em Tecnologia
             ownerid:     10.241.455/0001-52
             responsible: Maicon Cerentini
             country:     BR
             owner-c:     MACER7
             routing-c:   MACER7
             abuse-c:     MACER7
             created:     20110916
             changed:     20130306
             inetnum:     177.84.144.0/21
             inetnum:     2804:2b60::/32
             inetnum:     143.255.184.0/22
             inetnum:     45.238.136.0/22
             
             nic-hdl-br:  MACER7
             person:      Maicon Cerentini
             e-mail:      maicon@cerentini.com.br
             country:     BR
             created:     20080628
             changed:     20240416
             
             % 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.