ASN Lookup Tool

SEM FRONTEIRAS TELECOMUNICACOES LTDA semfronteirasnet.com.br BR BR 40 Routes

AS Data

AS266475

AS266475SEM FRONTEIRAS TELECOMUNICACOES LTDA

AS Number 266475
AS Name 11.972.556/0001-66
Organization SEM FRONTEIRAS TELECOMUNICACOES LTDA
Country BR
Website semfronteirasnet.com.br
Number of IPv4 Routes 26
Number of IPv6 Routes 14
ASN type ISP
Registry lacnic
Date Allocated 2017-01-10

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Use ASN data for AS266475 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
170.83.172.0/22 1024
38.9.112.0/22 1024
38.191.60.0/24 256
38.191.56.0/23 512
38.191.48.0/23 512
38.9.113.0/24 256
170.83.173.0/24 256
2804:3868::/34 ~20×10²⁷
38.191.52.0/23 512
38.56.72.0/22 1024
38.56.73.0/24 256
2804:3868:e00::/39 ~619×10²⁴
38.191.50.0/23 512
38.56.74.0/24 256
2804:3868:8000::/34 ~20×10²⁷
38.191.61.0/24 256
2804:3868::/32 ~79×10²⁷
170.83.174.0/24 256
38.191.60.0/23 512
2804:3868:1a00::/39 ~619×10²⁴
38.9.114.0/24 256
2804:3868:c000::/34 ~20×10²⁷
38.191.62.0/23 512
38.56.75.0/24 256
38.191.58.0/23 512
38.9.115.0/24 256
170.83.175.0/24 256
2804:3868:f600::/39 ~619×10²⁴
2804:3868:f800::/39 ~619×10²⁴
38.191.54.0/23 512
2804:3868:4000::/34 ~20×10²⁷
2804:3868:f200::/39 ~619×10²⁴
2804:3868:f400::/39 ~619×10²⁴
38.191.48.0/20 4096
170.83.172.0/24 256
38.9.112.0/24 256
2804:3868:200::/39 ~619×10²⁴
2804:3868:600::/39 ~619×10²⁴
2804:3868:1600::/39 ~619×10²⁴
38.56.72.0/24 256

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.
% 2026-07-26T09:15:12-03:00 - 185.77.250.15

aut-num:     AS266475
owner:       SEM FRONTEIRAS TELECOMUNICACOES LTDA
ownerid:     11.972.556/0001-66
responsible: Makleysh de Oliveira Bezerra
country:     BR
owner-c:     MAOBE101
routing-c:   KEBSO29
abuse-c:     MAOLI1589
created:     20170110
changed:     20251119
inetnum:     170.83.172.0/22
inetnum:     2804:3868::/32
as-in:       from AS4230 100 accept ANY
as-in:       from AS262253 100 accept ANY
as-in:       from AS271253 100 accept ANY
as-in:       from AS264275 100 accept ANY
as-out:      to AS4230 announce AS266475
as-out:      to AS262253 announce AS266475
as-out:      to AS271253 announce AS266475
as-out:      to AS264275 announce AS266475

nic-hdl-br:  MAOBE101
person:      Makleysh de Oliveira Bezerra
e-mail:      makleysh@semfronteirasnet.com.br
country:     BR
created:     20230704
changed:     20250207

nic-hdl-br:  KEBSO29
person:      K�mio Benevides de Souza
e-mail:      kemio@semfronteirasnet.com.br
country:     BR
created:     20250211
changed:     20250211

nic-hdl-br:  MAOLI1589
person:      Makleysh Oliveira
e-mail:      makleysh@semfronteirasnet.com.br
country:     BR
created:     20160128
changed:     20220706

% 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

Peers

AS Number Description Country
AS199081 Lancom Ltd. GR
AS264275 ROLIM NET TECNOLOGIA LTDA BR
AS11432 Telium Telecomunica��es Ltda BR
AS262589 SAMM TECNOLOGIA E TELECOMUNICACOES S.A BR
AS6939 Hurricane Electric LLC US
AS60602 Inovare-Prim SRL MD
AS266142 Bahiadados Telecom Ltda. BR
AS14537 Continent 8 LLC US
AS198150 SIACOM JSC GE
AS4230 CLARO S.A. BR
AS267256 ONETIS TECNOLOGIA LTDA BR
AS269416 SEMEAR TELECOM EIRELI BR
AS263283 JGNET - J G DE OLIVEIRA MATOS & CIA LTDA BR
AS271555 SDMNET INFORMATICA LTDA - ME BR
AS271253 LINK BRASIL TELECOMUNICACOES LTDA BR
AS9498 Bharti Airtel Ltd IN
AS270052 STARTELECOM S.A. PY
AS214757 Jakub Krsa CZ
AS262588 EXPLORERNET INFOLINK TECNOLOGIA E TELECOMUNICACOES BR
AS266400 Ferenz Networks BR
AS22548 Núcleo de Inf. e Coord. do Ponto BR NIC.BR BR
AS51185 MainStreaming SpA IT
AS262253 ECONOCABLE MEDIA SAC PE
AS263661 BRASIL DIGITAL SERVIÇOS DE INFORMATICA E COMERCIO BR
AS60503 FNX Tecnologia LTDA BR
AS34224 Neterra Ltd. BG
AS53062 GGNET TELECOMUNICACOES LTDA BR
AS206735 Novelcomm LP GR
AS16552 Tiggee LLC US
AS270353 Tyna Host - Datacenter no Brasil BR
AS268138 Thiago aparecido scaramuzza santana BR
AS270888 V8 Telecom LTDA BR
AS14840 BR.Digital Telecom BR
AS263237 PowerHost Telecom SPA CL
AS274840 A. S. DANTAS BR
AS61573 IP TELECOM BR
AS32590 Valve Corporation US
AS57463 NetIX Communications JSC BG
AS61624 INFNOC TECNOLOGIA LTDA BR
AS12735 TurkNet Iletisim Hizmetleri A.S. TR
AS28624 PROVEDORA CMA INTERNET LTDA BR
AS271555 SDMNET INFORMATICA LTDA ME BR
AS8801 Rocket Fibre Ltd GB
AS263321 ILOGNET PROVEDOR BR
AS61568 ALOO TELECOM - FSF TECNOLOGIA SA BR
AS262832 Infotechnet Informatica e Assistencia Tecnica Ltda BR
AS1031 PEER 1031 LLC US
AS28158 Ampernet Telecomunicações Ltda BR
AS262427 Invista Net Provedor de Acesso Ltda BR
AS999 CORIX NETWORKS US
AS52999 START NETWORKS S/A BR
AS264479 Turbozone Internet BR
AS266519 PROVERADIO TELECOM BR
AS267613 ELETRONET S.A. BR
AS263541 IMF NETWORK DATA LTDA - ME BR
AS61832 DB3 SERVICOS DE TELECOMUNICACOES S.A BR
AS24482 SG.GS SG
AS263152 MIGO TELECOM BR
AS12741 Netia SA PL
AS274676 MULTIWAY COMERCIO E REPRESENTACOES LTDA BR

Upstreams

AS Number Description Country
AS39120 Convergenze S.p.A. IT
AS264275 ROLIM NET TECNOLOGIA LTDA BR
AS271253 LINK BRASIL TELECOMUNICACOES LTDA BR
AS1031 PEER 1031 LLC US
AS6939 Hurricane Electric LLC US
AS6057 Administracion Nacional de Telecomunicaciones UY
AS52468 UFINET PANAMA S.A. PA
AS262253 ECONOCABLE MEDIA SAC PE
AS137409 GSL Networks Pty LTD AU
AS61626 UNIVERSIDADE ESTADUAL DE PONTA GROSSA BR
AS4230 CLARO S.A. BR

Downstreams

AS Number Description Country
AS274840 A. S. DANTAS BR
AS267997 DS TELECOM BR
AS267432 D. S. da Costa BR
AS271555 SDMNET INFORMATICA LTDA ME BR

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Frequently Asked Questions

ASN AS266475 is an Autonomous System Number used to identify a network for BGP internet routing.
AS266475 is listed under SEM FRONTEIRAS TELECOMUNICACOES LTDA.
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.