What is ASN AS266547?

ASN AS266547 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS266547?

AS266547 is listed under Fastsignal Com. e Serv. de informática 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.

AS266547 Fastsignal Com. e Serv. de informática Ltda

ASN Lookup Tool

Search ASN

AS Data

IP Routes

Raw Whois

Parsed Whois

Peers

Upstreams

Downstreams

Contacts

Legacy Routes

Fastsignal Com. e Serv. de informática Ltda

BR 26 Routes

AS Data

AS266547

AS266547 – Fastsignal Com. e Serv. de informática Ltda

AS Number	266547
AS Name
Organization	Fastsignal Com. e Serv. de informática Ltda
Country	BR
Number of IPv4 Routes	7
Number of IPv6 Routes	19
ASN type	ISP
Registry	lacnic
Date Allocated	2017-05-15

ASN Intelligence API for production workflows

Use ASN data for AS266547 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
2804:3db0::/32	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	~79×10²⁷
2804:3db0:4000::/36	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	~5×10²⁷
2804:3db0::/36	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	~5×10²⁷
2804:3db0:e000::/36	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	~5×10²⁷
2804:3db0:d000::/36	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	~5×10²⁷
2804:3db0:3000::/36	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	~5×10²⁷
160.238.129.0/24	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	256
2804:3db0:c000::/36	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	~5×10²⁷
160.238.128.0/22	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática Ltda	1024
160.238.128.0/23	AS266547	Fastsignal Com. e Serv. de informática Ltda	Fastsignal Com. e Serv. de informática 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.
% 2026-04-25T09:14:35-03:00 - 134.199.68.91

aut-num:     AS266547
owner:       Fastsignal Com. e Serv. de inform�tica Ltda
responsible: Gustavo Guilherme Salvador
owner-c:     GUGSA4
routing-c:   DAFRE290
abuse-c:     DAFRE290
created:     20170515
changed:     20221212
inetnum:     160.238.128.0/22
inetnum:     2804:3db0::/32
as-in:       from AS53062 100 accept ANY
as-in:       from AS28343 100 accept ANY
as-out:      to AS53062 announce AS266547
as-out:      to AS28343 announce AS266547

nic-hdl-br:  GUGSA4
person:      Gustavo Guilherme Salvador
created:     20090709
changed:     20260330

nic-hdl-br:  DAFRE290
person:      Daniel de Freitas
created:     20180503
changed:     20190315

% 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" : "AS266547",
    "admin_contacts" : [ "GUGSA4" ],
    "tech_contacts" : [ "DAFRE290" ],
    "abuse_contacts" : [ "DAFRE290" ],
    "date_created" : "2017-05-15",
    "date_updated" : "2022-12-12",
    "source" : "lacnic"
  } ],
  "organization" : {
    "name" : "Fastsignal Com. e Serv. de inform?tica Ltda",
    "abuse_contacts" : [ "DAFRE290" ],
    "date_created" : "2017-05-15",
    "date_updated" : "2022-12-12",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "GUGSA4",
    "date_created" : "2009-07-09",
    "date_updated" : "2026-03-30",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "DAFRE290",
    "date_created" : "2018-05-03",
    "date_updated" : "2019-03-15",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "DAFRE290",
    "date_created" : "2018-05-03",
    "date_updated" : "2019-03-15",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS53062	ALT \| GRUPO BRASIL TECPAR	BR
AS28343	UNIFIQUE TELECOMUNICACOES S/A	BR
AS53062	ALT GRUPO BRASIL TECPAR	BR

Upstreams

AS Number	Description	Country
AS28343	UNIFIQUE TELECOMUNICACOES S/A	BR
AS53062	ALT GRUPO BRASIL TECPAR	BR

ASN Lookup Tool

ASN Summary

AS266547 – Fastsignal Com. e Serv. de informática Ltda

ASN Intelligence API for production workflows

IP Ranges

Raw Whois Response

Parsed Whois Response

Peers

Upstreams

Ready to get started?Get Started with IP Intelligence API Today

Frequently Asked Questions