ASN AS28201 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS28201?

AS28201 is listed under Companhia Itabirana Telecomunica��es Ltda.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS28201 Companhia Itabirana Telecomunica��es Ltda

ASN Lookup Tool

Companhia Itabirana Telecomunica��es Ltda valenet.com.br

BR 237 Routes

AS Data

AS28201

AS28201 – Companhia Itabirana Telecomunica��es Ltda

AS Number	28201
AS Name	05.684.180/0001-91
Organization	Companhia Itabirana Telecomunica��es Ltda
Country	BR
Website	valenet.com.br
Number of IPv4 Routes	236
Number of IPv6 Routes	1
ASN type	ISP
Registry	lacnic
Date Allocated	2008-04-09

ASN Intelligence API for production workflows

Use ASN data for AS28201 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
179.189.104.0/23	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	512
187.17.254.0/23	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	512
189.90.252.0/23	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	512
187.1.48.0/21	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	2048
45.231.8.0/23	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	512
177.125.88.0/22	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	1024
189.90.240.0/23	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	512
45.7.212.0/22	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	1024
187.17.244.0/22	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	1024
191.5.92.0/22	AS28201	Companhia Itabirana Telecomunica��es Ltda	Companhia Itabirana Telecomunicações Ltda	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.
% 2026-04-04T09:23:01-03:00 - 136.227.174.147

aut-num:     AS28201
owner:       Companhia Itabirana Telecomunica��es Ltda
ownerid:     05.684.180/0001-91
responsible: Thiago Andrade
country:     BR
owner-c:     CIV19
routing-c:   CIV19
abuse-c:     CIV19
created:     20080409
changed:     20130306
inetnum:     189.90.240.0/20
inetnum:     187.17.240.0/20
inetnum:     187.73.0.0/20
inetnum:     187.86.64.0/20
inetnum:     2804:5c::/32
inetnum:     187.108.48.0/20
inetnum:     186.216.128.0/20
inetnum:     177.152.160.0/20
inetnum:     179.189.96.0/20
inetnum:     191.5.80.0/20
inetnum:     131.161.4.0/22
inetnum:     168.227.8.0/22
inetnum:     170.239.192.0/22
inetnum:     138.121.64.0/22
inetnum:     138.59.20.0/22
inetnum:     170.254.160.0/22
inetnum:     187.1.48.0/20
inetnum:     186.251.200.0/22
inetnum:     170.239.220.0/22
inetnum:     45.235.116.0/22
inetnum:     138.185.24.0/22
inetnum:     181.225.180.0/22
inetnum:     45.191.168.0/22
inetnum:     168.195.64.0/22
inetnum:     177.125.80.0/21
inetnum:     177.125.88.0/21
inetnum:     177.221.72.0/21
inetnum:     138.117.204.0/22
inetnum:     168.181.80.0/22
inetnum:     45.231.8.0/22
inetnum:     45.7.212.0/22
inetnum:     45.161.140.0/22
inetnum:     179.108.40.0/22
inetnum:     179.108.32.0/21

nic-hdl-br:  CIV19
person:      CIA Itabirana de Inform�tica - VALENET
e-mail:      bgp@valenet.com.br
country:     BR
created:     20040510
changed:     20240926

% 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

{
  "status" : true,
  "whois_server" : "whois.lacnic.net",
  "aut_nums" : [ {
    "aut_num" : "AS28201",
    "country" : "BR",
    "admin_contacts" : [ "CIV19" ],
    "tech_contacts" : [ "CIV19" ],
    "abuse_contacts" : [ "CIV19" ],
    "date_created" : "2008-04-09",
    "date_updated" : "2013-03-06",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "05.684.180/0001-91",
    "name" : "Companhia Itabirana Telecomunica??es Ltda",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "CIV19" ],
    "date_created" : "2008-04-09",
    "date_updated" : "2013-03-06",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "CIV19",
    "country" : "BR",
    "email" : [ "bgp@valenet.com.br" ],
    "date_created" : "2004-05-10",
    "date_updated" : "2024-09-26",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "CIV19",
    "country" : "BR",
    "email" : [ "bgp@valenet.com.br" ],
    "date_created" : "2004-05-10",
    "date_updated" : "2024-09-26",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "CIV19",
    "country" : "BR",
    "email" : [ "bgp@valenet.com.br" ],
    "date_created" : "2004-05-10",
    "date_updated" : "2024-09-26",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS270683	RFF Telecomunicaes e Consultoria LTDA	BR
AS60602	Inovare-Prim SRL	MD
AS14537	Continent 8 LLC	US
AS198150	SIACOM JSC	GE
AS269416	SEMEAR TELECOM EIRELI	BR
AS199524	G-Core Labs S.A.	LU
AS263283	JGNET - J G DE OLIVEIRA MATOS & CIA LTDA	BR
AS10429	TELEFÔNICA BRASIL S.A	BR
AS262588	EXPLORERNET INFOLINK TECNOLOGIA E TELECOMUNICACOES	BR
AS270735	COMPUTIZE NETWORK TELECOMUNICACOES LTDA	BR

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS13786	Seabras 1 USA, LLC	US
AS7195	EDGEUNO S.A.S	CO
AS35280	F5 Networks SARL	FR
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.	CO
AS14840	BR.Digital Telecom	BR
AS10429	TELEF�NICA BRASIL S.A	BR
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS7713	Telekomunikasi Indonesia PT	ID
AS3356	Level 3 Parent, LLC	US

Downstreams

AS Number	Description	Country
AS271471	BIT CENTER INFORMATICA EIRELI	BR
AS13335	Cloudflare, Inc.	US
AS263406	Procuradoria Geral de Justi�a de Minas Gerais	BR
AS263261	TRIBUNAL REGIONAL DO TRABALHO DA 3A REGIAO	BR
AS53194	VIP NETWORK TELECOMUNICA��ES LTDA	BR
AS268314	EWERTON DA SILVA LOPES TELECOMUNICA��ES	BR
AS52608	ASSEMBLEIA LEGISLATIVA DE MINAS GERAIS	BR
AS262669	Companhia Itabirana Telecomunica��es Ltda	BR
AS272244	Pi Telecom	BR
AS270683	RFF Telecomunica��es e Consultoria LTDA	BR