ASN AS61591 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS61591?

AS61591 is listed under WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME.

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.

AS61591 WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME

ASN Lookup Tool

WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME

BR 40 Routes

AS Data

AS61591

AS61591 – WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME

AS Number	61591
AS Name
Organization	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME
Country	BR
Number of IPv4 Routes	21
Number of IPv6 Routes	19
ASN type	ISP
Registry	lacnic
Date Allocated	2018-04-02

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Use ASN data for AS61591 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
138.97.66.0/23	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	512
170.247.40.0/23	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	512
2804:231c:d000::/36	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	~5×10²⁷
45.237.75.0/24	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	256
2804:231c:4000::/36	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	~5×10²⁷
2804:231c::/33	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	~40×10²⁷
2804:231c:5000::/36	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	~5×10²⁷
2804:231c:8000::/33	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	~40×10²⁷
170.247.40.0/22	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	1024
45.237.74.0/23	AS61591	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. ME	WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME	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.
% 2026-04-01T09:26:29-03:00 - 134.199.81.110

aut-num:     AS61591
owner:       WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME
responsible: CARLOS JOSE
owner-c:     WETCO18
routing-c:   WETCO18
abuse-c:     WETCO18
created:     20180402
changed:     20180402
inetnum:     138.97.64.0/22
inetnum:     170.247.40.0/22
inetnum:     2804:231c::/32
inetnum:     45.237.72.0/22

nic-hdl-br:  WETCO18
person:      WESTLINK TECNOLOGIA E COMUNICA��O
created:     20161202
changed:     20231211

% 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" : "AS61591",
    "admin_contacts" : [ "WETCO18" ],
    "tech_contacts" : [ "WETCO18" ],
    "abuse_contacts" : [ "WETCO18" ],
    "date_created" : "2018-04-02",
    "date_updated" : "2018-04-02",
    "source" : "lacnic"
  } ],
  "organization" : {
    "name" : "WESTLINK TECNOLOGIA E COMUNICACAO LTDA. - ME",
    "abuse_contacts" : [ "WETCO18" ],
    "date_created" : "2018-04-02",
    "date_updated" : "2018-04-02",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "WETCO18",
    "date_created" : "2016-12-02",
    "date_updated" : "2023-12-11",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "WETCO18",
    "date_created" : "2016-12-02",
    "date_updated" : "2023-12-11",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "WETCO18",
    "date_created" : "2016-12-02",
    "date_updated" : "2023-12-11",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS268131	MIX NET TELECOMUNICAÇÕES LTDA - ME	BR
AS268624	Gamers Club Ltda	BR
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS60602	Inovare-Prim SRL	MD
AS14537	Continent 8 LLC	US
AS198150	SIACOM JSC	GE
AS269416	SEMEAR TELECOM EIRELI	BR
AS272713	CDN Star Ltda	BR
AS52965	1TELECOM SERVICOS DE TECNOLOGIA EM INTERNET LTDA	BR
AS199524	G-Core Labs S.A.	LU

Upstreams

AS Number	Description	Country
AS263009	FORTE TELECOM LTDA.	BR
AS268624	Gamers Club Ltda	BR
AS39120	Convergenze S.p.A.	IT
AS272713	CDN Star Ltda	BR
AS9498	Bharti Airtel Limited	IN
AS35280	F5 Networks SARL	FR
AS14840	BR.Digital Telecom	BR
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS3356	Level 3 Parent, LLC	US

Downstreams

AS Number	Description	Country
AS61613	TMSoft Solucoes em Informatica Ltda	BR
AS263499	Telecom Conectividade	BR
AS268675	Web Fiber Provedor Telecom Acesso A Redes de Inter	BR
AS267237	Elevalink Telecomunica��es LTDA ME	BR
AS271293	Navenet Informatica Ltda	BR
AS263508	SIMNET TELECOMUNICACOES LTDA	BR
AS268131	MIX NET TELECOMUNICA��ES LTDA ME	BR
AS264527	LRF CONECTIONS SERVICOS LTDA ME	BR