What is ASN AS266546?

ASN AS266546 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS266546?

AS266546 is listed under TWF NET 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.

AS266546 TWF NET PROVEDOR DE INTERNET LTDA

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AS Data

IP Routes

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Peers

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Legacy Routes

TWF NET PROVEDOR DE INTERNET LTDA twf.net.br

BR 10 Routes

AS Data

AS266546

AS266546 – TWF NET PROVEDOR DE INTERNET LTDA

AS Number	266546
AS Name	26.578.190/0001-12
Organization	TWF NET PROVEDOR DE INTERNET LTDA
Country	BR
Website	twf.net.br
Number of IPv4 Routes	7
Number of IPv6 Routes	3
ASN type	ISP
Registry	lacnic
Date Allocated	2017-05-12

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Use ASN data for AS266546 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
160.238.196.0/22	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	1024
160.238.196.0/24	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	256
160.238.198.0/24	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	256
160.238.197.0/24	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	256
160.238.196.0/23	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	512
2804:3dac::/32	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	~79×10²⁷
160.238.199.0/24	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	256
2804:3dac:100::/40	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	~309×10²⁴
2804:3dac::/40	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	~309×10²⁴
160.238.198.0/23	AS266546	TWF NET PROVEDOR DE INTERNET LTDA	TWF NET PROVEDOR DE INTERNET LTDA	512

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.
% 2026-04-25T09:21:47-03:00 - 45.82.97.189

aut-num:     AS266546
owner:       TWF NET PROVEDOR DE INTERNET LTDA
ownerid:     26.578.190/0001-12
responsible: Gr�gory H. Ebertz
country:     BR
owner-c:     GRE23
routing-c:   GRE23
abuse-c:     GRE23
created:     20170512
changed:     20210205
inetnum:     160.238.196.0/22
inetnum:     2804:3dac::/32
as-in:       from AS53062 100 accept ANY
as-out:      to AS53062 announce AS266546

nic-hdl-br:  GRE23
person:      Gr�gory Ebertz
e-mail:      contato@twf.net.br
country:     BR
created:     20031220
changed:     20260401

% 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" : "AS266546",
    "country" : "BR",
    "admin_contacts" : [ "GRE23" ],
    "tech_contacts" : [ "GRE23" ],
    "abuse_contacts" : [ "GRE23" ],
    "date_created" : "2017-05-12",
    "date_updated" : "2021-02-05",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "26.578.190/0001-12",
    "name" : "TWF NET PROVEDOR DE INTERNET LTDA",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "GRE23" ],
    "date_created" : "2017-05-12",
    "date_updated" : "2021-02-05",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "GRE23",
    "country" : "BR",
    "email" : [ "contato@twf.net.br" ],
    "date_created" : "2003-12-20",
    "date_updated" : "2026-04-01",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "GRE23",
    "country" : "BR",
    "email" : [ "contato@twf.net.br" ],
    "date_created" : "2003-12-20",
    "date_updated" : "2026-04-01",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "GRE23",
    "country" : "BR",
    "email" : [ "contato@twf.net.br" ],
    "date_created" : "2003-12-20",
    "date_updated" : "2026-04-01",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS199081	Lancom Ltd.	GR
AS7195	EDGEUNO S.A.S	CO
AS6939	Hurricane Electric LLC	US
AS60602	Inovare-Prim SRL	MD
AS266142	Bahiadados Telecom Ltda.	BR
AS14537	Continent 8 LLC	US
AS198150	SIACOM JSC	GE
AS40850	UPIX NETWORKS INTERNATIONAL LLC	US
AS37468	Angola Cables	AO
AS269416	SEMEAR TELECOM EIRELI	BR

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS37468	Angola Cables	AO
AS7195	EDGEUNO S.A.S	CO
AS1031	PEER 1031 LLC	US
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS53062	ALT GRUPO BRASIL TECPAR	BR
AS267613	ELETRONET S.A.	BR

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ASN Summary

AS266546 – TWF NET PROVEDOR DE INTERNET LTDA

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IP Ranges

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