What is ASN AS264566?

ASN AS264566 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS264566?

AS264566 is listed under INTERNET O SUL TELECOM 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.

AS264566 INTERNET O SUL TELECOM LTDA.

ASN Lookup Tool

INTERNET O SUL TELECOM LTDA. internetosul.com.br

BR 11 Routes

AS Data

AS264566

AS264566 – INTERNET O SUL TELECOM LTDA.

AS Number	264566
AS Name	09.289.574/0001-04
Organization	INTERNET O SUL TELECOM LTDA.
Country	BR
Website	internetosul.com.br
Number of IPv4 Routes	7
Number of IPv6 Routes	4
ASN type	ISP
Registry	lacnic
Date Allocated	2015-01-15

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Use ASN data for AS264566 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
138.0.145.0/24	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	256
2804:21ac::/36	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	~5×10²⁷
138.0.144.0/23	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	512
138.0.144.0/24	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	256
138.0.146.0/24	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	256
2804:21ac::/33	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	~40×10²⁷
138.0.147.0/24	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	256
138.0.146.0/23	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	512
2804:21ac::/32	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	~79×10²⁷
138.0.144.0/22	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	1024
2804:21ac:8000::/33	AS264566	INTERNET O SUL TELECOM LTDA.	INTERNET O SUL TELECOM LTDA.	~40×10²⁷

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.
% 2026-07-15T09:21:49-03:00 - 136.227.172.177

aut-num:     AS264566
owner:       INTERNET O SUL TELECOM LTDA.
ownerid:     09.289.574/0001-04
responsible: Marino Tregnago
country:     BR
owner-c:     MATRE34
routing-c:   TETEC72
abuse-c:     MATRE34
created:     20150115
changed:     20260608
inetnum:     138.0.144.0/22
inetnum:     2804:21ac::/32

nic-hdl-br:  MATRE34
person:      marino tregnago
e-mail:      marino@internetosul.com.br
country:     BR
created:     20110325
changed:     20240306

nic-hdl-br:  TETEC72
person:      Teif Tecnologia
e-mail:      suporte@teiftec.com.br
country:     BR
created:     20210525
changed:     20210526

% 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" : "AS264566",
    "country" : "BR",
    "admin_contacts" : [ "MATRE34" ],
    "tech_contacts" : [ "TETEC72" ],
    "abuse_contacts" : [ "MATRE34" ],
    "date_created" : "2015-01-15",
    "date_updated" : "2026-06-08",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "09.289.574/0001-04",
    "name" : "INTERNET O SUL TELECOM LTDA.",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "MATRE34" ],
    "date_created" : "2015-01-15",
    "date_updated" : "2026-06-08",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "MATRE34",
    "country" : "BR",
    "email" : [ "marino@internetosul.com.br" ],
    "date_created" : "2011-03-25",
    "date_updated" : "2024-03-06",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "TETEC72",
    "country" : "BR",
    "email" : [ "suporte@teiftec.com.br" ],
    "date_created" : "2021-05-25",
    "date_updated" : "2021-05-26",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MATRE34",
    "country" : "BR",
    "email" : [ "marino@internetosul.com.br" ],
    "date_created" : "2011-03-25",
    "date_updated" : "2024-03-06",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS264409	GRUPO YAX	BR
AS263152	MIGO TELECOM	BR
AS14840	BR.Digital Telecom	BR
AS264247	Maila Networks	BR
AS272554	Log-Fi Internet	BR
AS61624	INFNOC TECNOLOGIA LTDA	BR
AS11432	Telium Telecomunicações Ltda	BR
AS26162	Núcleo de Inf. e Coord. do Ponto BR - NIC.BR	BR
AS263420	ACX TELECOM LTDA.	BR
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS269783	WIND NET S.A.	PY
AS53013	UFINET BRASIL S.A.	BR
AS61568	ALOO TELECOM - FSF TECNOLOGIA SA	BR
AS1031	PEER 1031 LLC	US
AS269096	N&K TECNOLOGIA LTDA	BR
AS266400	Ferenz Networks	BR
AS999	CORIX NETWORKS	US
AS3356	Level 3 Parent, LLC	US
AS53230	Clean Net Telecom Ltda	BR
AS22689	SERCOMTEL S/A TELECOMUNICACOES	BR
AS262830	Plug Provedor Internet LTDA	BR
AS267613	ELETRONET S.A.	BR

Upstreams

AS Number	Description	Country
AS14840	BR.Digital Telecom	BR
AS1031	PEER 1031 LLC	US
AS11432	Telium Telecomunicações Ltda	BR
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS3356	Level 3 Parent, LLC	US
AS53013	UFINET BRASIL S.A.	BR

Downstreams

AS Number	Description	Country
AS263420	ACX TELECOM LTDA.	BR
AS22689	SERCOMTEL S/A TELECOMUNICACOES	BR