ASN Lookup Tool

Telefônica Brasil S.A. telefonica.com.br BR BR 1054 Routes

AS Data

AS18881

AS18881 – Telefônica Brasil S.A.

AS Number 18881
AS Name TELEFÔNICA BRASIL S.A
Organization Telefônica Brasil S.A.
Country BR
Website telefonica.com.br
Number of IPv4 Routes 958
Number of IPv6 Routes 73
ASN type ISP
Registry lacnic
Date Allocated 2000-10-23

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IP Ranges

Route # IPs
177.43.128.0/21 2048
179.184.92.0/22 1024
187.114.128.0/20 4096
179.184.128.0/22 1024
187.58.32.0/19 8192
177.206.104.0/21 2048
177.133.64.0/19 8192
177.42.144.0/20 4096
177.133.224.0/19 8192
179.185.224.0/19 8192
191.251.48.0/20 4096
179.184.188.0/22 1024
179.178.64.0/21 2048
177.42.64.0/19 8192
186.212.240.0/20 4096
201.47.0.0/17 32768
177.158.32.0/19 8192
179.177.208.0/21 2048
177.40.160.0/19 8192
191.35.128.0/20 4096
191.248.224.0/19 8192
177.41.144.0/21 2048
189.58.96.0/19 8192
179.183.168.0/21 2048
179.162.128.0/19 8192
177.16.192.0/21 2048
179.180.224.0/20 4096
179.184.32.0/22 1024
177.41.176.0/20 4096
179.187.0.0/20 4096
179.185.20.0/22 1024
191.33.0.0/19 8192
179.186.96.0/20 4096
177.204.0.0/14 262144
191.34.112.0/20 4096
179.179.8.0/21 2048
187.115.160.0/19 8192
186.215.32.0/20 4096
189.59.0.0/21 2048
191.249.128.0/18 16384
2804:7f6:8000::/33 ~40×10²⁷
201.86.128.0/18 16384
2804:7f3:e000::/35 ~1×10³⁰
179.182.72.0/21 2048
191.32.176.0/20 4096
191.30.128.0/20 4096
179.185.160.0/22 1024
2804:7f0:4000::/34 ~20×10²⁷
201.22.0.0/18 16384
191.35.192.0/19 8192
177.204.16.0/22 1024
200.139.64.0/20 4096
177.156.32.0/21 2048
177.43.224.0/21 2048
177.97.96.0/19 8192
191.32.32.0/19 8192
179.184.216.0/22 1024
177.204.168.0/21 2048
177.159.80.0/20 4096
177.17.32.0/19 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.
% 2026-10-30T09:20:13-03:00 - 74.114.55.244

aut-num:     AS18881
owner:       TELEF�NICA BRASIL S.A
responsible: Diretoria de Planejamento e Tecnologia
owner-c:     ARITE
routing-c:   TEBSA15
abuse-c:     CSTBR
created:     20001023
changed:     20190730
inetnum:     200.175.0.0/18
inetnum:     200.175.64.0/18
inetnum:     200.175.128.0/18
inetnum:     200.175.192.0/18
inetnum:     200.146.0.0/18
inetnum:     200.139.64.0/18
inetnum:     200.146.64.0/18
inetnum:     201.22.0.0/16
inetnum:     201.47.0.0/16
inetnum:     201.86.0.0/16
inetnum:     189.26.0.0/15
inetnum:     189.58.0.0/15
inetnum:     189.114.0.0/15
inetnum:     187.58.0.0/15
inetnum:     187.112.0.0/14
inetnum:     186.212.0.0/14
inetnum:     2804:1b0::/31
inetnum:     177.16.0.0/14
inetnum:     177.40.0.0/14
inetnum:     177.96.0.0/14
inetnum:     2804:7f0::/29
inetnum:     177.132.0.0/14
inetnum:     177.156.0.0/14
inetnum:     177.204.0.0/14
inetnum:     179.176.0.0/14
inetnum:     179.180.0.0/14
inetnum:     179.184.0.0/14
inetnum:     191.248.0.0/14
inetnum:     191.32.0.0/14
inetnum:     2804:1b2::/31
inetnum:     2804:1b4::/30
inetnum:     179.95.0.0/16
inetnum:     179.83.0.0/16
inetnum:     179.162.0.0/16
inetnum:     191.30.0.0/16
inetnum:     191.31.0.0/16

nic-hdl-br:  ARITE
person:      Administra��o Rede IP Telesp
created:     20080407
changed:     20230629

nic-hdl-br:  TEBSA15
person:      TELEFONICA BRASIL S.A
created:     20190530
changed:     20190530

nic-hdl-br:  CSTBR
person:      CSIRT TELEFONICA BR
created:     20180713
changed:     20180713

% 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.


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       18881
ASName:         LACNIC-18881
ASHandle:       AS18881
RegDate:        2002-07-27
Updated:        2007-12-17
Comment:        This AS is under LACNIC responsibility for further allocations to
Comment:        users in LACNIC region.
Comment:        Please see http://www.lacnic.net/ for further details, or check the
Comment:        WHOIS server located at http://whois.lacnic.net
Ref:            https://rdap.arin.net/registry/autnum/18881

ResourceLink:  http://lacnic.net/cgi-bin/lacnic/whois
ResourceLink:  whois.lacnic.net


OrgName:        Latin American and Caribbean IP address Regional Registry
OrgId:          LACNIC
Address:        Rambla Republica de Mexico 6125
City:           Montevideo
StateProv:      
PostalCode:     11400
Country:        UY
RegDate:        2002-07-27
Updated:        2018-03-15
Ref:            https://rdap.arin.net/registry/entity/LACNIC

ReferralServer:  whois://whois.lacnic.net
ResourceLink:  http://lacnic.net/cgi-bin/lacnic/whois

OrgTechHandle: LACNIC-ARIN
OrgTechName:   LACNIC Whois Info
OrgTechPhone:  +598-2604-2222 
OrgTechEmail:  whois-contact@lacnic.net
OrgTechRef:    https://rdap.arin.net/registry/entity/LACNIC-ARIN

OrgAbuseHandle: LWI100-ARIN
OrgAbuseName:   LACNIC Whois Info
OrgAbusePhone:  +598-2604-2222 
OrgAbuseEmail:  abuse@lacnic.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LWI100-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS52890 Centro Integrado de Telemática do Exército BR
AS269394 Mitas Internet Banda Larga Ltda BR
AS266992 Oliveira & Fernandes Telecomunicações Ltda BR
AS267534 TRIBUNAL REGIONAL DO TRABALHO 23 REGIAO BR
AS264370 Lwart Solucoes Ambientais Ltda. BR
AS61678 NETWAY INFORMATICA LTDA BR
AS28177 NETWORKBRASIL Ltda. BR
AS264957 Coopercitrus Cooperativa de Produtores Rurais BR
AS263550 Energisa S/A BR
AS4230 CLARO S.A. BR
AS28626 NTT BRASIL COMERCIO E SERVIÇOS DE TECNOLOGIA LTDA BR
AS268806 Amil Assistência Médica Internacional S.A BR
AS10429 TELEFÔNICA BRASIL S.A BR
AS266533 ICNT PROVEDOR DE INTERNET LTDA BR
AS267192 TELCOM PROVEDOR DE ACESSO LTDA EPP BR
AS11993 BANCO DO BRASIL S.A. BR
AS16509 Amazon.com, Inc. US
AS53228 BEM PROMOTORA DE VENDAS E SERVICOS SA BR
AS271362 BLUEIT TECNOLOGIA LTDA BR
AS265443 Huawei do Brasil Telecomunicações Ltda. BR
AS268018 DB3 SERVICOS DE TELECOMUNICACOES S.A BR
AS266602 ODATA S.A. BR
AS266480 XP Investimentos CCTVM S/A BR
AS263625 NEW WORLD PONTO COM INFORMATICA LTDA ME BR
AS262287 Latitude.sh LTDA BR
AS52782 HYUNDAI AUTOEVER BRASIL TECNOLOGIA DA INFORMACAO BR
AS262559 Águia Branca Participações Ltda BR
AS52798 BANCO BTG PACTUAL S.A. BR
AS1031 PEER 1031 LLC US
AS263422 AXES SERVICOS DE COMUNICACAO LTDA. BR
AS52657 NORTE TELECOMUNICAÇÕES SERVIÇOS DE INTERNET LTDA BR
AS7162 Universo Online S.A. BR
AS52688 FATIMA VIDEO ELETRONICA LTDA ME BR
AS270770 Sanasa Sociedade de Abastecimento de Agua e Saneam BR
AS273595 Lastnet Telecom BR
AS262885 MAPFRE SEGUROS GERAIS S/A BR
AS267613 ELETRONET S.A. BR
AS400696 MIBURA, INC. US
AS61899 CERVEJARIA PETROPOLIS SA BR
AS268356 COMPANHIA ZAFFARI COMÉRCIO E INDÚSTRIA BR
AS19197 Stefanini, Inc. US
AS14868 LIGGA SERVICOS EM TELECOM S.A. BR
AS269284 Instituto Euro Americano de Educacao Ciencia Tecno BR
AS28121 BB TECNOLOGIA E SERVICOS S/A BR
AS270980 Natal Conect Ltda BR
AS267310 COMPANHIA NACIONAL DE ABASTECIMENTO BR
AS270540 WEBNET Telecom BR
AS266161 CEUMA ASSOCIACAO DE ENSINO SUPERIOR BR
AS53017 REDE NOVO TEMPO DE COMUNICAÇÃO BR
AS266984 INFOTEK TELECOM BR
AS61814 Empresa Brasileira de Ens.Peq.Extensão S/A EMBRAE BR
AS262426 TELECOMUNICAÇÕES RONDONOPOLIS LTDA ME BR
AS266286 TBNET COMERCIO, LOCACAO E ADMINISTRACAO LTDA BR
AS61621 Norte.Net Telecomunicações Ltda BR
AS3360 DXC US Latin America Corporation US
AS52754 GRUPO SHARK BR
AS28295 Diagnosticos da America S.A. BR
AS263310 Artennet Comunicações Ltda Me BR
AS264401 CSU CARDSYSTEM S.A BR
AS264956 Murillo Jorge Alteia ME BR

Upstreams

AS Number Description Country
AS61568 ALOO TELECOM FSF TECNOLOGIA SA BR
AS10429 TELEFÔNICA BRASIL S.A BR

Downstreams

AS Number Description Country
AS52890 Centro Integrado de Telemática do Exército BR
AS269394 Mitas Internet Banda Larga Ltda BR
AS266992 Oliveira & Fernandes Telecomunicações Ltda BR
AS267534 TRIBUNAL REGIONAL DO TRABALHO 23 REGIAO BR
AS61678 NETWAY INFORMATICA LTDA BR
AS28177 NETWORKBRASIL Ltda. BR
AS264957 Coopercitrus Cooperativa de Produtores Rurais BR
AS28626 NTT BRASIL COMERCIO E SERVIÇOS DE TECNOLOGIA LTDA BR
AS268806 Amil Assistência Médica Internacional S.A BR
AS266533 ICNT PROVEDOR DE INTERNET LTDA BR

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Frequently Asked Questions

ASN AS18881 is an Autonomous System Number used to identify a network for BGP internet routing.
AS18881 is listed under Telefônica Brasil S.A..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.