ASN AS53237 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS53237?

AS53237 is listed under TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS.

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.

AS53237 TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS

ASN Lookup Tool

TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS

BR 56 Routes

AS Data

AS53237

AS53237 – TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS

AS Number	53237
AS Name
Organization	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS
Country	BR
Number of IPv4 Routes	38
Number of IPv6 Routes	18
ASN type	GOVERNMENT
Registry	lacnic
Date Allocated	2010-12-10

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Use ASN data for AS53237 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
177.88.0.0/20	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS	4096
2804:300:c000::/35	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	DEPARTAMENTO NACIONAL DE OBRAS CONTRA AS SECAS	~1×10³⁰
177.15.64.0/20	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS	4096
177.14.176.0/20	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	Jauru Transmissora de Energia S.A.	4096
177.15.248.0/21	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS	2048
177.14.224.0/19	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	EMPRESA BRASIL DE COMUNICACAO S.A. - EBC	8192
177.88.96.0/19	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS	8192
177.14.240.0/20	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS	4096
177.15.160.0/19	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS	8192
177.14.64.0/19	AS53237	TELECOMUNICACOES BRASILEIRAS S. A. TELEBRAS	TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS	8192

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.
% 2026-04-10T09:16:17-03:00 - 134.199.89.156

aut-num:     AS53237
owner:       TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS
responsible: Hermano Studart Lins de Albuquerque
owner-c:     ALLCO87
routing-c:   GOCPE7
abuse-c:     GOCPE7
created:     20101210
changed:     20240205
inetnum:     177.14.0.0/15
inetnum:     2804:300::/30
inetnum:     177.88.0.0/16

nic-hdl-br:  ALLCO87
person:      Alvaro Lobo Costa
created:     20130429
changed:     20231019

nic-hdl-br:  GOCPE7
person:      GORS CPE
created:     20221024
changed:     20221024

% 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" : "AS53237",
    "admin_contacts" : [ "ALLCO87" ],
    "tech_contacts" : [ "GOCPE7" ],
    "abuse_contacts" : [ "GOCPE7" ],
    "date_created" : "2010-12-10",
    "date_updated" : "2024-02-05",
    "source" : "lacnic"
  } ],
  "organization" : {
    "name" : "TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS",
    "abuse_contacts" : [ "GOCPE7" ],
    "date_created" : "2010-12-10",
    "date_updated" : "2024-02-05",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "ALLCO87",
    "date_created" : "2013-04-29",
    "date_updated" : "2023-10-19",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "GOCPE7",
    "date_created" : "2022-10-24",
    "date_updated" : "2022-10-24",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "GOCPE7",
    "date_created" : "2022-10-24",
    "date_updated" : "2022-10-24",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS263056	INDNET TELECOMUNICACOES LTDA	BR
AS28178	Networld Provedor e Servicos de Internet Ltda	BR
AS273370	INFO JR TELECOM SERVICOS DE COMUNICACAO LTDA	BR
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS60602	Inovare-Prim SRL	MD
AS14537	Continent 8 LLC	US
AS198150	SIACOM JSC	GE
AS37468	Angola Cables	AO
AS269416	SEMEAR TELECOM EIRELI	BR
AS52965	1TELECOM SERVICOS DE TECNOLOGIA EM INTERNET LTDA	BR

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS37468	Angola Cables	AO
AS28178	Networld Provedor e Servicos de Internet Ltda	BR
AS12956	TELXIUS Cable	ES
AS28598	DB3 SERVICOS DE TELECOMUNICACOES S.A	BR
AS35280	F5 Networks SARL	FR
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS52468	UFINET PANAMA S.A.	PA
AS7713	Telekomunikasi Indonesia PT	ID

Downstreams

AS Number	Description	Country
AS266040	EBER DEJANI PEREIRA DE ALBERNAZ CIA LTDA	BR
AS263056	INDNET TELECOMUNICACOES LTDA	BR
AS264080	MINISTERIO DE MINAS E ENERGIA	BR
AS273370	INFO JR TELECOM SERVICOS DE COMUNICACAO LTDA	BR
AS266031	PRESIDÊNCIA DA REPÚBLICA	BR
AS262486	PRODAM Processamento de Dados Amazonas S.A	BR
AS270740	EASYTECH TECNOLOGIA DA INFORMAÇÃO LTDA	BR
AS53016	PRODEPA Emp Tec da Inf e Com do Estado do Pará	BR
AS40311	ViaSat,Inc.	US
AS264022	REDE CONEXAONET	BR