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.

AS273491 ISP RW NET INFORMATICA LTDA

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

ISP RW NET INFORMATICA LTDA

BR 1 Routes

AS Data

AS273491

AS273491 – ISP RW NET INFORMATICA LTDA

AS Number	273491
AS Name	29.572.181/0001-02
Organization	ISP RW NET INFORMATICA LTDA
Country	BR
Number of IPv4 Routes	0
Number of IPv6 Routes	1
ASN type	ISP
Registry	lacnic
Date Allocated	2024-04-04

ASN Intelligence API for production workflows

Use ASN data for AS273491 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

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2804:8f74::/32	AS273491	ISP RW NET INFORMATICA LTDA	ISP RW NET INFORMATICA LTDA	~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.
% 2026-04-25T09:19:26-03:00 - 89.19.43.87

aut-num:     AS273491
owner:       ISP RW NET INFORMATICA LTDA
ownerid:     29.572.181/0001-02
responsible: Railson Mendes dos Santos
country:     BR
owner-c:     IRNIL1
routing-c:   IRNIL1
abuse-c:     IRNIL1
created:     20240404
changed:     20260329
inetnum:     2804:8f74::/32
as-in:       from AS20121 100 accept ANY
as-in:       from AS26162 100 accept ANY
as-in:       from AS269096 200 accept ANY
as-in:       from AS6939 300 accept ANY
as-out:      to AS20121 announce AS273491 AS270663
as-out:      to AS26162 announce AS273491 AS270663
as-out:      to AS269096 announce AS273491 AS270663
as-out:      to AS6939 announce AS273491 AS270663

nic-hdl-br:  IRNIL1
person:      ISP RW NET INFORMATICA LTDA
e-mail:      raylsom94@gmail.com
country:     BR
created:     20200430
changed:     20251030

% 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" : "AS273491",
    "country" : "BR",
    "admin_contacts" : [ "IRNIL1" ],
    "tech_contacts" : [ "IRNIL1" ],
    "abuse_contacts" : [ "IRNIL1" ],
    "date_created" : "2024-04-04",
    "date_updated" : "2026-03-29",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "29.572.181/0001-02",
    "name" : "ISP RW NET INFORMATICA LTDA",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "IRNIL1" ],
    "date_created" : "2024-04-04",
    "date_updated" : "2026-03-29",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "IRNIL1",
    "country" : "BR",
    "email" : [ "raylsom94@gmail.com" ],
    "date_created" : "2020-04-30",
    "date_updated" : "2025-10-30",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "IRNIL1",
    "country" : "BR",
    "email" : [ "raylsom94@gmail.com" ],
    "date_created" : "2020-04-30",
    "date_updated" : "2025-10-30",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "IRNIL1",
    "country" : "BR",
    "email" : [ "raylsom94@gmail.com" ],
    "date_created" : "2020-04-30",
    "date_updated" : "2025-10-30",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS199081	Lancom Ltd.	GR
AS6939	Hurricane Electric LLC	US
AS266142	Bahiadados Telecom Ltda.	BR
AS198150	SIACOM JSC	GE
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	BR
AS9498	Bharti Airtel Ltd	IN
AS270052	STARTELECOM S.A.	PY
AS266400	Ferenz Networks	BR
AS22548	Núcleo de Inf. e Coord. do Ponto BR NIC.BR	BR
AS51185	MainStreaming SpA	IT

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS6939	Hurricane Electric LLC	US
AS269096	N&K TECNOLOGIA LTDA	BR
AS6057	Administracion Nacional de Telecomunicaciones	UY

Downstreams

AS Number	Description	Country
AS270663	LM NET LTDA	BR

Frequently Asked Questions

What is ASN AS273491?

ASN AS273491 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS273491?

AS273491 is listed under ISP RW NET INFORMATICA LTDA.

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.