ASN Lookup Tool

Webcenter Sist Prest de Servicos de Informatica webcenter.com.br BR BR 6 Routes

AS Data

AS28203

AS28203 – Webcenter Sist Prest de Servicos de Informatica

AS Number 28203
AS Name 05.936.319/0002-28
Organization Webcenter Sist Prest de Servicos de Informatica()
Country BR
Website webcenter.com.br
Number of IPv4 Routes 6
Number of IPv6 Routes 0
ASN type BUSINESS
Registry lacnic
Date Allocated 2008-04-10

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Use ASN data for AS28203 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
189.91.45.0/24 256
189.91.34.0/24 256
189.91.46.0/24 256
189.91.36.0/22 1024
189.91.40.0/21 2048
189.91.32.0/23 512

Raw Whois Response

% 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.
% 2026-03-16T09:23:39-03:00 - 185.77.251.22

aut-num:     AS28203
owner:       Webcenter Sist Prest de Servicos de Informatica
ownerid:     05.936.319/0002-28
responsible: Ricardo Buchalla Auada
country:     BR
owner-c:     WESIS2
routing-c:   RBA2
abuse-c:     RBA2
created:     20080410
changed:     20130306
inetnum:     189.91.32.0/20

nic-hdl-br:  WESIS2
person:      Webcenter Sistemas
e-mail:      auada@webcenter.com.br
country:     BR
created:     20091216
changed:     20091216

nic-hdl-br:  RBA2
person:      Ricardo Buchalla Auada
e-mail:      registro@webcenter.com.br
country:     BR
created:     19971222
changed:     20221109

% 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.

Parsed Whois Response

Peers

AS Number Description Country
AS22356 Durand do Brasil Ltda BR

Upstreams

AS Number Description Country
AS22356 Durand do Brasil Ltda BR

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Frequently Asked Questions

ASN AS28203 is an Autonomous System Number used to identify a network for BGP internet routing.
AS28203 is listed under Webcenter Sist Prest de Servicos de Informatica.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.