ASN Lookup Tool

OPEN SYSTEM LTDA BR BR 3 Routes

AS Data

AS28660

AS28660 – OPEN SYSTEM LTDA

AS Number 28660
AS Name
Organization OPEN SYSTEM LTDA()
Country BR
Number of IPv4 Routes 3
Number of IPv6 Routes 0
ASN type ISP
Registry lacnic
Date Allocated 2006-08-10

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Use ASN data for AS28660 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
201.87.224.0/22 1024
201.87.224.0/21 2048
201.87.228.0/22 1024

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.
% 2026-03-16T09:15:05-03:00 - 213.159.12.155

aut-num:     AS28660
owner:       OPEN SYSTEM LTDA
responsible: Luiz Cl�udio de Ara�jo Pires
owner-c:     TWI6
routing-c:   TWI6
abuse-c:     TWI6
created:     20060810
changed:     20201005
inetnum:     201.87.224.0/21
as-in:       from AS4230 100 accept ANY
as-in:       from AS21574 100 accept ANY
as-in:       from AS61894 99 accept ANY
as-out:      to AS4230 announce AS28660
as-out:      to AS21574 announce AS28660
as-out:      to AS61894 announce AS28660

nic-hdl-br:  TWI6
person:      Turbo Web Internet
created:     20040818
changed:     20250910

% 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
AS21574 Century Telecom Ltda BR
AS4230 CLARO S.A. BR

Upstreams

AS Number Description Country
AS21574 Century Telecom Ltda BR
AS4230 CLARO S.A. BR

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Frequently Asked Questions

ASN AS28660 is an Autonomous System Number used to identify a network for BGP internet routing.
AS28660 is listed under OPEN SYSTEM LTDA.
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.