ASN AS61731 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS61731?

AS61731 is listed under Work 349 Internet Provedores 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.

AS61731 Work 349 Internet Provedores ltda ME

ASN Lookup Tool

Work 349 Internet Provedores ltda ME

BR 8 Routes

AS Data

AS61731

AS61731 – Work 349 Internet Provedores ltda ME

AS Number	61731
AS Name	40.287.856/0001-04
Organization	Work 349 Internet Provedores ltda ME()
Country	BR
Number of IPv4 Routes	5
Number of IPv6 Routes	3
ASN type	ISP
Registry	lacnic
Date Allocated	2014-08-04

ASN Intelligence API for production workflows

Use ASN data for AS61731 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

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
131.72.161.0/24	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	256
131.72.160.0/24	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	256
2804:1b7c::/32	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	~79×10²⁷
131.72.162.0/24	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	256
2804:1b7c:8000::/33	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	~40×10²⁷
131.72.163.0/24	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	256
2804:1b7c::/33	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	~40×10²⁷
131.72.160.0/22	AS61731	Work 349 Internet Provedores ltda ME	Work 349 Internet Provedores ltda - ME	1024

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.
% 2026-03-16T09:23:30-03:00 - 136.227.186.163

aut-num:     AS61731
owner:       Work 349 Internet Provedores ltda - ME
ownerid:     40.287.856/0001-04
responsible: Marcelo Costa Marques
country:     BR
owner-c:     MACMA864
routing-c:   MACMA864
abuse-c:     MACMA864
created:     20140804
changed:     20240605
inetnum:     131.72.160.0/22
inetnum:     2804:1b7c::/32
as-in:       from AS15830 100 accept ANY
as-in:       from AS268209 100 accept ANY
as-out:      to AS15830 announce AS61731
as-out:      to AS268209 announce AS61731

nic-hdl-br:  MACMA864
person:      Marcelo Costa Marques
e-mail:      nucleo.mcm@gmail.com
country:     BR
created:     20161113
changed:     20251217

% 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
AS61832	DB3 SERVICOS DE TELECOMUNICACOES S.A	BR
AS263152	MIGO TELECOM	BR
AS7195	EDGEUNO S.A.S	CO
AS53062	ALT \| GRUPO BRASIL TECPAR	BR
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.	CO
AS6939	Hurricane Electric LLC	US
AS266142	Bahiadados Telecom Ltda.	BR
AS53013	UFINET BRASIL S.A.	BR
AS52873	Softdados Telecomunicações	BR
AS263009	FORTE TELECOM LTDA.	BR

Upstreams

AS Number	Description	Country
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS7195	EDGEUNO S.A.S	CO
AS35280	F5 Networks SARL	FR
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS52468	UFINET PANAMA S.A.	PA
AS53013	UFINET BRASIL S.A.	BR
AS268209	FENIX TELECOM	BR
AS1916	Rede Nacional de Ensino e Pesquisa	BR

Downstreams

AS Number	Description	Country
AS268536	Equinor Brasil Energia Ltda.	BR
AS268209	FENIX TELECOM	BR