What is ASN AS267121?

ASN AS267121 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS267121?

AS267121 is listed under ATPlus Telecom.

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.

AS267121 ATPlus Telecom | IPGeolocation.io

ASN Lookup Tool

ATPlus Telecom atplus.com.br

BR 27 Routes

AS Data

AS267121

AS267121 – ATPlus Telecom

AS Number	267121
AS Name	19.782.703/0001-47
Organization	ATPlus Telecom
Country	BR
Website	atplus.com.br
Number of IPv4 Routes	22
Number of IPv6 Routes	5
ASN type	ISP
Registry	lacnic
Date Allocated	2018-01-04

ASN Intelligence API for production workflows

Use ASN data for AS267121 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
50.114.180.0/24	AS267121	ATPlus Telecom	Internet Utilities NA LLC	256
45.229.106.0/24	AS267121	ATPlus Telecom	ATPlus Telecom	256
2804:4870:2000::/40	AS267121	ATPlus Telecom	ATPlus Telecom	~309×10²⁴
187.84.150.0/24	AS267121	ATPlus Telecom	ATPlus Telecom	256
45.229.104.0/22	AS267121	ATPlus Telecom	ATPlus Telecom	1024
45.147.226.0/24	AS267121	ATPlus Telecom	Invermae Solutions SL	256
45.229.105.0/24	AS267121	ATPlus Telecom	ATPlus Telecom	256
2804:4870:2f00::/40	AS267121	ATPlus Telecom	ATPlus Telecom	~309×10²⁴
45.229.107.0/24	AS267121	ATPlus Telecom	ATPlus Telecom	256
187.84.150.0/23	AS267121	ATPlus Telecom	ATPlus Telecom	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.
% 2026-04-27T10:24:40-03:00 - 136.227.173.0

aut-num:     AS267121
owner:       ATPlus Telecom
ownerid:     19.782.703/0001-47
responsible: Maicon bez Fontana
country:     BR
owner-c:     APTLT51
routing-c:   APTLT51
abuse-c:     APTLT51
created:     20180104
changed:     20220222
inetnum:     45.229.104.0/22
inetnum:     2804:4870::/32
inetnum:     187.84.148.0/22

nic-hdl-br:  APTLT51
person:      AT Plus Telecom LTDA
e-mail:      dominios@atplus.com.br
country:     BR
created:     20210413
changed:     20250430

% 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" : "AS267121",
    "country" : "BR",
    "admin_contacts" : [ "APTLT51" ],
    "tech_contacts" : [ "APTLT51" ],
    "abuse_contacts" : [ "APTLT51" ],
    "date_created" : "2018-01-04",
    "date_updated" : "2022-02-22",
    "source" : "lacnic"
  } ],
  "organization" : {
    "handle" : "19.782.703/0001-47",
    "name" : "ATPlus Telecom",
    "country" : [ "BR" ],
    "abuse_contacts" : [ "APTLT51" ],
    "date_created" : "2018-01-04",
    "date_updated" : "2022-02-22",
    "source" : "lacnic"
  },
  "administrative_contacts" : [ {
    "handle" : "APTLT51",
    "country" : "BR",
    "email" : [ "dominios@atplus.com.br" ],
    "date_created" : "2021-04-13",
    "date_updated" : "2025-04-30",
    "source" : "lacnic"
  } ],
  "technical_contacts" : [ {
    "handle" : "APTLT51",
    "country" : "BR",
    "email" : [ "dominios@atplus.com.br" ],
    "date_created" : "2021-04-13",
    "date_updated" : "2025-04-30",
    "source" : "lacnic"
  } ],
  "abuse_contacts" : [ {
    "handle" : "APTLT51",
    "country" : "BR",
    "email" : [ "dominios@atplus.com.br" ],
    "date_created" : "2021-04-13",
    "date_updated" : "2025-04-30",
    "source" : "lacnic"
  } ]
}

Peers

AS Number	Description	Country
AS264263	STARTEC PROVEDOR DE INTERNET LTDA	BR
AS262589	SAMM TECNOLOGIA E TELECOMUNICACOES S.A	BR
AS60602	Inovare-Prim SRL	MD
AS14537	Continent 8 LLC	US
AS198150	SIACOM JSC	GE
AS269416	SEMEAR TELECOM EIRELI	BR
AS10881	FUNPAR Fundacao da UFPR para o DCTC	BR
AS199524	G-Core Labs S.A.	LU
AS263283	JGNET - J G DE OLIVEIRA MATOS & CIA LTDA	BR
AS262588	EXPLORERNET INFOLINK TECNOLOGIA E TELECOMUNICACOES	BR

Upstreams

AS Number	Description	Country
AS39120	Convergenze S.p.A.	IT
AS10881	FUNPAR Fundacao da UFPR para o DCTC	BR
AS263998	Machado & Mascarelo Sonorizacao Ltda	BR
AS14840	BR.Digital Telecom	BR
AS6939	Hurricane Electric LLC	US
AS6057	Administracion Nacional de Telecomunicaciones	UY
AS53062	ALT GRUPO BRASIL TECPAR	BR
AS3356	Level 3 Parent, LLC	US
AS33182	HostDime.com, Inc.	US

Downstreams

AS Number	Description	Country
AS263014	ATP DATA	BR
AS263018	Zapelini & Cia. Ltda.	BR
AS274569	ASK Corp	BR
AS264263	STARTEC PROVEDOR DE INTERNET LTDA	BR
AS265005	IPWORKS SISTEMAS LTDA ME	BR
AS61821	Sincroniza Digital LTDA	BR
AS274504	CUNHA INSTALACOES TELEFONICAS LTDA ME	BR
AS264194	NDD Tech LTDA	BR

Legacy Routes

151.247.210.0/24