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

BR 6 Routes

AS Data

AS263004

AS263004 – CZNET PROVEDOR DE INTERNET LTDA

AS Number	263004
AS Name
Organization	CZNET PROVEDOR DE INTERNET LTDA()
Country	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.

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

Get ASN API Key ASN API Docs

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.
% 2026-03-16T09:24:33-03:00 - 119.12.178.28

aut-num:     AS263004
owner:       CZNET PROVEDOR DE INTERNET LTDA
responsible: CASSIANO ZANON
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
created:     20071219
changed:     20201223

nic-hdl-br:  ELNET50
person:      Elevate Network
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

Peers

AS Number	Description	Country
AS24482	SG.GS	SG
AS263152	MIGO TELECOM	BR
AS52863	UPX TECNOLOGIA LTDA	BR
AS52934	Tolrs Informática Ltda	BR
AS273803	Tiago Coinaski Me	BR
AS36236	NetActuate, Inc	US
AS6424	EDGOO NETWORKS UNIPESSOAL LDA	PT
AS22548	N�cleo de Inf. e Coord. do Ponto BR NIC.BR	BR
AS266570	CZNET PROVEDOR DE INTERNET LTDA	BR
AS51185	MainStreaming SpA	IT

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS28146	MHNET TELECOM	BR
AS1916	Rede Nacional de Ensino e Pesquisa	BR

Downstreams

AS Number	Description	Country
AS273803	Tiago Coinaski Me	BR
AS52934	Tolrs Inform�tica Ltda	BR
AS265107	Computers World	BR
AS266570	CZNET PROVEDOR DE INTERNET LTDA	BR