Report for 28581

Name

Banco Santander Brasil S.A., 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.

28581 Banco Santander Brasil S.A., BR

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

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
11830 AS28581        ORIGIN  Originate:       8192 /19.00  Transit:          0 /0.00  Banco Santander Brasil S.A., 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       %
 3543 AS28581       Banco Santander Brasil S.A., BR                   17     15      0      2     15  88.24%


  Prefix               AS Path                              Aggregation Suggestion
  200.220.176.0/20     4777 2516 4230 28581   
  200.220.176.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.177.0/24     4777 2516 4230 28581 28581   
  200.220.178.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.179.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.180.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.181.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.182.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.183.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.184.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.185.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.186.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.187.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.188.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.189.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.190.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581
  200.220.191.0/24     4777 2516 4230 28581 - Withdrawn - matching aggregate 200.220.176.0/20 4777 2516 4230 28581

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

AS28581   16 More Specifics   17 Total Advertisements   Banco Santander Brasil S.A., BR
    200.220.176.0/24              200.220.176.0/20
    200.220.177.0/24              200.220.176.0/20
    200.220.178.0/24              200.220.176.0/20
    200.220.179.0/24              200.220.176.0/20
    200.220.180.0/24              200.220.176.0/20
    200.220.181.0/24              200.220.176.0/20
    200.220.182.0/24              200.220.176.0/20
    200.220.183.0/24              200.220.176.0/20
    200.220.184.0/24              200.220.176.0/20
    200.220.185.0/24              200.220.176.0/20
    200.220.186.0/24              200.220.176.0/20
    200.220.187.0/24              200.220.176.0/20
    200.220.188.0/24              200.220.176.0/20
    200.220.189.0/24              200.220.176.0/20
    200.220.190.0/24              200.220.176.0/20
    200.220.191.0/24              200.220.176.0/20

Whois Entry

whois: 402332

IANA has recorded AS28581 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28581\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.
             % 2026-04-02T16:07:49-03:00 - 2401:2000:6660::13
             
             aut-num:     AS28581
             owner:       Banco Santander (Brasil) S.A.
             ownerid:     90.400.888/0001-42
             responsible: Suporte Internet
             country:     BR
             owner-c:     MAMGA18
             routing-c:   LCP3
             abuse-c:     LCP3
             created:     20040804
             changed:     20151028
             inetnum:     200.220.176.0/20
             inetnum:     2804:1f14::/32
             
             nic-hdl-br:  MAMGA18
             person:      Marcos Martins Galuzzi
             e-mail:      suporteinternet@santander.com.br
             country:     BR
             created:     20090312
             changed:     20250120
             
             nic-hdl-br:  LCP3
             person:      Responsavel pela INTERNET BANESPA
             e-mail:      suporteinternet@santander.com.br
             country:     BR
             created:     19971223
             changed:     20160905
             
             % 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.