Report for 28275

Name

AS28275 - Fundacao Casper Libero, 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.

28275 AS28275 - Fundacao Casper Libero, BR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS10429         AS10429 - TELEFONICA BRASIL S.A, BR
    AS4230          AS4230 - CLARO S.A., BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11109 AS28275        ORIGIN  Originate:       8704 /18.91  Transit:          0 /0.00  AS28275 - Fundacao Casper Libero, 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       %
12460 AS28275       AS28275 - Fundacao Casper Libero, BR               5      3      0      2      3  60.00%


  Prefix               AS Path                              Aggregation Suggestion
  201.33.96.0/20       4777 2516 4230 28275   
  201.33.96.0/21       4777 2516 4230 28275 - Withdrawn - matching aggregate 201.33.96.0/20 4777 2516 4230 28275
  201.33.103.0/24      4777 2516 4230 28275 - Withdrawn - matching aggregate 201.33.96.0/20 4777 2516 4230 28275
  201.33.104.0/21      4777 2516 4230 28275 - Withdrawn - matching aggregate 201.33.96.0/20 4777 2516 4230 28275
  201.33.111.0/24      4608 7575 1299 12956 10429 28275   

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

AS28275   4 More Specifics   5 Total Advertisements   AS28275 - Fundacao Casper Libero, BR
    201.33.96.0/21                201.33.96.0/20
    201.33.103.0/24               201.33.96.0/20
    201.33.104.0/21               201.33.96.0/20
    201.33.111.0/24               201.33.96.0/20

Whois Entry

whois: 402628

IANA has recorded AS28275 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28275\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.
             % 2026-06-15T15:44:07-03:00 - 2401:2000:6660::13
             
             aut-num:     AS28275
             owner:       Fundacao Casper Libero
             ownerid:     61.277.273/0001-72
             responsible: William Rogerio de Oliveira
             country:     BR
             owner-c:     REFCL6
             routing-c:   REFCL6
             abuse-c:     REFCL6
             created:     20070322
             changed:     20250220
             inetnum:     201.33.96.0/20
             inetnum:     2801:80:100::/48
             
             nic-hdl-br:  REFCL6
             person:      Registar FCL
             e-mail:      registros.dns@fcl.com.br
             country:     BR
             created:     20250218
             changed:     20260424
             
             % 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.