Report for 28170

Name

AS28170 - WMB SUPERMERCADOS DO BRASIL 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.

28170 AS28170 - WMB SUPERMERCADOS DO BRASIL LTDA, BR

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS10429         AS10429 - TELEFONICA BRASIL S.A, BR
    AS7738          AS7738 - V tal, BR
    AS4230          AS4230 - CLARO S.A., BR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
28840 AS28170        ORIGIN  Originate:       1792 /21.19  Transit:          0 /0.00  AS28170 - WMB SUPERMERCADOS DO BRASIL 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       %
21810 AS28170       AS28170 - WMB SUPERMERCADOS DO BRASIL LTDA, B      6      1      0      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  187.63.243.0/24      4777 2516 4230 28170   
  187.63.252.0/23      4777 2516 4230 28170   
  187.63.252.0/24      4608 7575 1299 12956 10429 28170   
  187.63.253.0/24      4777 2516 4230 28170 - Withdrawn - matching aggregate 187.63.252.0/23 4777 2516 4230 28170
  187.63.254.0/24      4777 2516 4230 28170   
  187.63.255.0/24      4777 2516 3257 52320 7738 28170   

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

AS28170   6 More Specifics   6 Total Advertisements   AS28170 - WMB SUPERMERCADOS DO BRASIL LTDA, BR
    187.63.243.0/24               187.63.240.0/20
    187.63.252.0/23               187.63.240.0/20
    187.63.252.0/24               187.63.240.0/20
    187.63.253.0/24               187.63.240.0/20
    187.63.254.0/24               187.63.240.0/20
    187.63.255.0/24               187.63.240.0/20

Whois Entry

whois: 402628

IANA has recorded AS28170 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS28170\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.
             % 2026-06-15T15:53:43-03:00 - 2401:2000:6660::13
             
             aut-num:     AS28170
             owner:       WMB SUPERMERCADOS DO BRASIL LTDA
             ownerid:     00.063.960/0001-09
             responsible: Carrefour Group Domain Admin
             country:     BR
             owner-c:     GRBAD4
             routing-c:   GRBAD4
             abuse-c:     GRBAD4
             created:     20090701
             changed:     20211228
             inetnum:     187.63.240.0/20
             inetnum:     2801:80:34e0::/44
             
             nic-hdl-br:  GRBAD4
             person:      Grupo Big  ADM
             e-mail:      br_cyber_tech_digital@carrefour.com
             country:     BR
             created:     20211227
             changed:     20231219
             
             % 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.