What is ASN AS263991?

ASN AS263991 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS263991?

AS263991 is listed under WFNET 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.

AS263991 WFNET INTERNET LTDA | IPGeolocation.io

ASN Lookup Tool

WFNET INTERNET LTDA

BR 15 Routes

AS Data

AS263991

AS263991 – WFNET INTERNET LTDA

AS Number	263991
AS Name	14.987.681/0001-38
Organization	WFNET INTERNET LTDA
Country	BR
Number of IPv4 Routes	12
Number of IPv6 Routes	3
ASN type	ISP
Registry	lacnic
Date Allocated	2015-09-08

ASN Intelligence API for production workflows

Use ASN data for AS263991 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
143.0.31.0/24	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	256
170.245.16.0/24	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	256
170.245.18.0/24	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	256
143.0.28.0/24	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	256
170.245.18.0/23	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	512
170.245.16.0/23	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	512
143.0.29.0/24	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	256
170.245.17.0/24	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	256
2804:28fc::/33	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	~40×10²⁷
143.0.30.0/24	AS263991	WFNET INTERNET LTDA	WFNET INTERNET LTDA	256

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.
% 2026-04-10T09:27:46-03:00 - 136.227.188.45

aut-num:     AS263991
owner:       WFNET INTERNET LTDA
ownerid:     14.987.681/0001-38
responsible: Felipe Vieira Nunes
country:     BR
owner-c:     FEVNU6
routing-c:   FEVNU6
abuse-c:     FEVNU6
created:     20150908
changed:     20160229
inetnum:     143.0.28.0/22
inetnum:     2804:28fc::/32
inetnum:     170.245.16.0/22
as-in:       from AS262620 100 accept ANY
as-in:       from AS10429 100 accept ANY
as-out:      to AS262620 announce AS263991
as-out:      to AS10429 announce AS2263991

nic-hdl-br:  FEVNU6
person:      Felipe Vieira Nunes
e-mail:      wfnet1@gmail.com
country:     BR
created:     20150715
changed:     20220705

% 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" : "AS263991",
    "country" : "BR",
    "admin_contacts" : [ "FEVNU6" ],
    "tech_contacts" : [ "FEVNU6" ],
    "abuse_contacts" : [ "FEVNU6" ],
    "date_created" : "2015-09-08",
    "date_updated" : "2016-02-29",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "14.987.681/0001-38",
    "name" : "WFNET INTERNET LTDA",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "FEVNU6" ],
    "date_created" : "2015-09-08",
    "date_updated" : "2016-02-29",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "FEVNU6",
    "country" : "BR",
    "email" : [ "wfnet1@gmail.com" ],
    "date_created" : "2015-07-15",
    "date_updated" : "2022-07-05",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "FEVNU6",
    "country" : "BR",
    "email" : [ "wfnet1@gmail.com" ],
    "date_created" : "2015-07-15",
    "date_updated" : "2022-07-05",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "FEVNU6",
    "country" : "BR",
    "email" : [ "wfnet1@gmail.com" ],
    "date_created" : "2015-07-15",
    "date_updated" : "2022-07-05",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS199081	Lancom Ltd.	GR
AS268624	Gamers Club Ltda	BR
AS11432	Telium Telecomunicaï¿½ï¿½es Ltda	BR
AS7195	EDGEUNO S.A.S	CO
AS262493	IANA - Autonomous System Number	BR
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS6939	Hurricane Electric LLC	US
AS60602	Inovare-Prim SRL	MD
AS266142	Bahiadados Telecom Ltda.	BR
AS14537	Continent 8 LLC	US

Upstreams

AS Number	Description	Country
AS268624	Gamers Club Ltda	BR
AS39120	Convergenze S.p.A.	IT
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS262493	IANA - Autonomous System Number	ZZ
AS35280	F5 Networks SARL	FR
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS7713	Telekomunikasi Indonesia PT	ID

Downstreams

AS Number	Description	Country
AS268624	Gamers Club Ltda	BR
AS265412	SMANET INFORMÁTICA EIRELI ME	BR
AS273473	FLASHNET TELECOMUNICACOES LTDA	BR
AS61855	NOVA NET TECNOLOGIA LTDA ME	BR