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AS266401 CNA NET | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

CNA NET

BR 8 Routes

AS Data

AS266401

AS266401 – CNA NET

AS Number	266401
AS Name	04.675.000/0001-42
Organization	CNA NET
Country	BR
Number of IPv4 Routes	5
Number of IPv6 Routes	3
ASN type	ISP
Registry	lacnic
Date Allocated	2016-12-06

ASN Intelligence API for production workflows

Use ASN data for AS266401 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2804:3748::/33	AS266401	CNA NET	CNA NET	~40×10²⁷
170.81.60.0/22	AS266401	CNA NET	CNA NET	1024
170.81.60.0/24	AS266401	CNA NET	CNA NET	256
170.81.61.0/24	AS266401	CNA NET	CNA NET	256
170.81.63.0/24	AS266401	CNA NET	CNA NET	256
170.81.62.0/24	AS266401	CNA NET	CNA NET	256
2804:3748:8000::/33	AS266401	CNA NET	CNA NET	~40×10²⁷
2804:3748::/32	AS266401	CNA NET	CNA NET	~79×10²⁷

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.
% 2026-04-25T09:24:59-03:00 - 176.53.222.124

aut-num:     AS266401
owner:       CNA NET
ownerid:     04.675.000/0001-42
responsible: FERNANDO C. FERREIRA
country:     BR
owner-c:     FECFE92
routing-c:   FECFE92
abuse-c:     FECFE92
created:     20161206
changed:     20250728
inetnum:     170.81.60.0/22
inetnum:     2804:3748::/32

nic-hdl-br:  FECFE92
person:      Fernando Cerqueira Ferreira
e-mail:      nandd79@hotmail.com
country:     BR
created:     20150118
changed:     20200308

% 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" : "AS266401",
    "country" : "BR",
    "admin_contacts" : [ "FECFE92" ],
    "tech_contacts" : [ "FECFE92" ],
    "abuse_contacts" : [ "FECFE92" ],
    "date_created" : "2016-12-06",
    "date_updated" : "2025-07-28",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "04.675.000/0001-42",
    "name" : "CNA NET",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "FECFE92" ],
    "date_created" : "2016-12-06",
    "date_updated" : "2025-07-28",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "FECFE92",
    "country" : "BR",
    "email" : [ "nandd79@hotmail.com" ],
    "date_created" : "2015-01-18",
    "date_updated" : "2020-03-08",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "FECFE92",
    "country" : "BR",
    "email" : [ "nandd79@hotmail.com" ],
    "date_created" : "2015-01-18",
    "date_updated" : "2020-03-08",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "FECFE92",
    "country" : "BR",
    "email" : [ "nandd79@hotmail.com" ],
    "date_created" : "2015-01-18",
    "date_updated" : "2020-03-08",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS11432	Telium Telecomunicaï¿½ï¿½es Ltda	BR
AS7195	EDGEUNO S.A.S	CO
AS6939	Hurricane Electric LLC	US
AS266142	Bahiadados Telecom Ltda.	BR
AS14537	Continent 8 LLC	US
AS28186	ITS TELECOMUNICACOES LTDA	BR
AS269416	SEMEAR TELECOM EIRELI	BR
AS263283	JGNET - J G DE OLIVEIRA MATOS & CIA LTDA	BR
AS199524	G-Core Labs S.A.	LU
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS35280	F5 Networks SARL	FR
AS14840	BR.Digital Telecom	BR
AS268517	SPEEDNET INFORMATICA LTDA ME	BR
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS28186	ITS TELECOMUNICACOES LTDA	BR

Downstreams

AS Number	Description	Country
AS268517	SPEEDNET INFORMATICA LTDA ME	BR

Frequently Asked Questions

What is ASN AS266401?

ASN AS266401 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS266401?

AS266401 is listed under CNA NET.

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

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.