What is ASN AS263004?

ASN AS263004 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS263004?

AS263004 is listed under CZNET PROVEDOR DE INTERNET 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.

AS263004 CZNET PROVEDOR DE INTERNET LTDA

ASN Lookup Tool

CZNET PROVEDOR DE INTERNET LTDA cznet.net.br

BR 6 Routes

AS Data

AS263004

AS263004 – CZNET PROVEDOR DE INTERNET LTDA

AS Number	263004
AS Name	06.910.203/0001-00
Organization	CZNET PROVEDOR DE INTERNET LTDA
Country	BR
Website	cznet.net.br
Number of IPv4 Routes	3
Number of IPv6 Routes	3
ASN type	ISP
Registry	lacnic
Date Allocated	2012-05-18

ASN Intelligence API for production workflows

Use ASN data for AS263004 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
186.237.16.0/22	AS263004	CZNET PROVEDOR DE INTERNET LTDA	CZNET PROVEDOR DE INTERNET LTDA	1024
2804:2be4::/33	AS263004	CZNET PROVEDOR DE INTERNET LTDA	CZNET PROVEDOR DE INTERNET LTDA	~40×10²⁷
2804:2be4::/32	AS263004	CZNET PROVEDOR DE INTERNET LTDA	CZNET PROVEDOR DE INTERNET LTDA	~79×10²⁷
186.237.20.0/22	AS263004	CZNET PROVEDOR DE INTERNET LTDA	CZNET PROVEDOR DE INTERNET LTDA	1024
143.208.228.0/22	AS263004	CZNET PROVEDOR DE INTERNET LTDA	CZNET PROVEDOR DE INTERNET LTDA	1024
2804:2be4:8000::/33	AS263004	CZNET PROVEDOR DE INTERNET LTDA	CZNET PROVEDOR DE INTERNET LTDA	~40×10²⁷

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.
% 2026-04-25T09:22:52-03:00 - 98.143.156.116

aut-num:     AS263004
owner:       CZNET PROVEDOR DE INTERNET LTDA
ownerid:     06.910.203/0001-00
responsible: CASSIANO ZANON
country:     BR
owner-c:     CAZAN8
routing-c:   ELNET50
abuse-c:     ELNET50
created:     20120518
changed:     20241003
inetnum:     186.237.16.0/21
inetnum:     2804:2be4::/32
inetnum:     143.208.228.0/22

nic-hdl-br:  CAZAN8
person:      Cassiano Zanon
e-mail:      dti@cznet.net.br
country:     BR
created:     20071219
changed:     20201223

nic-hdl-br:  ELNET50
person:      Elevate Network
e-mail:      gustavo@elevatenetwork.com.br
country:     BR
created:     20210422
changed:     20250228

% 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" : "AS263004",
    "country" : "BR",
    "admin_contacts" : [ "CAZAN8" ],
    "tech_contacts" : [ "ELNET50" ],
    "abuse_contacts" : [ "ELNET50" ],
    "date_created" : "2012-05-18",
    "date_updated" : "2024-10-03",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "06.910.203/0001-00",
    "name" : "CZNET PROVEDOR DE INTERNET LTDA",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "ELNET50" ],
    "date_created" : "2012-05-18",
    "date_updated" : "2024-10-03",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "CAZAN8",
    "country" : "BR",
    "email" : [ "dti@cznet.net.br" ],
    "date_created" : "2007-12-19",
    "date_updated" : "2020-12-23",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "ELNET50",
    "country" : "BR",
    "email" : [ "gustavo@elevatenetwork.com.br" ],
    "date_created" : "2021-04-22",
    "date_updated" : "2025-02-28",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ELNET50",
    "country" : "BR",
    "email" : [ "gustavo@elevatenetwork.com.br" ],
    "date_created" : "2021-04-22",
    "date_updated" : "2025-02-28",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS24482	SG.GS	SG
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS263152	MIGO TELECOM	BR
AS273803	Tiago Coinaski - Me	BR
AS28146	MHNET TELECOM	BR
AS14840	BR.Digital Telecom	BR
AS61573	IP TELECOM	BR
AS32590	Valve Corporation	US
AS6057	Administracion Nacional de Telecomunicaciones	UY

Upstreams

AS Number	Description	Country
AS61568	ALOO TELECOM FSF TECNOLOGIA SA	BR
AS39120	Convergenze S.p.A.	IT
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS28146	MHNET TELECOM	BR
AS6057	Administracion Nacional de Telecomunicaciones	UY

Downstreams

AS Number	Description	Country
AS273803	Tiago Coinaski Me	BR
AS265107	Computers World	BR
AS266570	CZNET PROVEDOR DE INTERNET LTDA	BR
AS52934	Tolros Informática Ltda	BR