Whois & RDAP Lookup
V.PS Cloud KVM VPS for developers KVM VPS · 11 PoPs · 99.9% SLA Simple VPS, premium network · Pick a PoP, deploy in seconds 11 PoPs · APAC, Europe, North America Tier 1 upstreams Premium network · Low-latency routes Free 24×7 support €6.95/mo Deploy a serverDeployAS28573
RDAPHandle28573
NameASN28573
HolderClaro NXT Telecomunicacoes Ltda
CountryBR
Registered2003-11-27 12:00 UTC
Updated2023-01-05 19:10 UTC
RegistrantClaro NXT Telecomunicacoes Ltda
Admin ContactGrupo de Segurança Vírtua
Registry RDAPhttps://rdap.lacnic.net
Raw WHOIS response
% IP Client: 104.28.238.119 % 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. % 2026-10-14T05:46:59-03:00 - 104.28.238.119 aut-num: AS28573 owner: Claro NXT Telecomunicacoes Ltda ownerid: 66.970.229/0001-67 responsible: Suporte Redes country: BR owner-c: GRSVI routing-c: CADSA1060 abuse-c: GRSVI created: 20031127 changed: 20230105 inetnum: 200.189.80.0/20 inetnum: 200.160.96.0/20 inetnum: 201.6.0.0/16 inetnum: 201.17.0.0/16 inetnum: 201.21.0.0/16 inetnum: 201.37.0.0/16 inetnum: 201.52.0.0/15 inetnum: 201.46.240.0/20 inetnum: 201.55.224.0/20 inetnum: 201.62.96.0/19 inetnum: 201.74.0.0/16 inetnum: 201.76.16.0/20 inetnum: 201.80.0.0/14 inetnum: 201.76.64.0/19 inetnum: 201.77.64.0/20 inetnum: 201.94.160.0/19 inetnum: 201.75.0.0/16 inetnum: 189.4.0.0/14 inetnum: 189.29.0.0/16 inetnum: 189.32.0.0/14 inetnum: 189.39.144.0/20 inetnum: 189.54.0.0/15 inetnum: 189.60.0.0/14 inetnum: 189.100.0.0/14 inetnum: 189.120.0.0/14 inetnum: 189.126.16.0/20 inetnum: 187.2.0.0/15 inetnum: 187.20.0.0/14 inetnum: 187.36.0.0/14 inetnum: 187.64.0.0/14 inetnum: 187.104.0.0/14 inetnum: 186.204.0.0/14 inetnum: 186.220.0.0/14 inetnum: 177.32.0.0/14 inetnum: 177.80.0.0/14 inetnum: 2804:14c::/31 inetnum: 177.140.0.0/14 inetnum: 177.180.0.0/14 inetnum: 177.192.0.0/14 inetnum: 179.232.0.0/14 inetnum: 179.208.0.0/14 inetnum: 179.212.0.0/14 inetnum: 179.216.0.0/14 inetnum: 179.220.0.0/14 inetnum: 179.152.0.0/14 inetnum: 179.156.0.0/14 inetnum: 191.176.0.0/14 inetnum: 191.180.0.0/14 inetnum: 191.184.0.0/14 inetnum: 191.188.0.0/14 inetnum: 181.216.0.0/13 inetnum: 187.180.0.0/14 inetnum: 177.235.0.0/16 inetnum: 179.105.0.0/16 inetnum: 181.213.0.0/16 inetnum: 187.255.0.0/16 inetnum: 177.64.0.0/15 inetnum: 187.122.0.0/15 inetnum: 2804:698::/32 inetnum: 177.100.0.0/16 inetnum: 177.127.0.0/16 inetnum: 186.218.0.0/16 inetnum: 189.14.128.0/18 inetnum: 200.170.0.0/18 inetnum: 200.218.32.0/19 inetnum: 200.155.192.0/18 inetnum: 179.136.0.0/14 inetnum: 179.140.0.0/15 inetnum: 179.142.0.0/15 nic-hdl-br: GRSVI person: Grupo de Seguran�a V�rtua e-mail: [email protected] country: BR created: 20080512 changed: 20260924 nic-hdl-br: CADSA1060 person: Carlos Alberto dos Santos e-mail: [email protected] country: BR created: 20190207 changed: 20260911 % Security and mail abuse issues should also be addressed to cert.br, % respectivelly to [email protected] and [email protected] % % whois.registro.br only accepts exact match queries for domains, % registrants, contacts, tickets, providers, IPs, and ASNs. % Query time: 1023 msec % WHEN: Wed Oct 14 08:46:58 UTC 2026
Raw RDAP JSON (registry) https://rdap.lacnic.net
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"value": "https://rdap.registro.br/autnum/28573"
}
],
"name": "ASN28573",
"notices": [
{
"description": [
"Copyright (c) Nic.br - Use of this data is governed by the Use and Privacy Policy. Distribution, commercialization, reproduction, and use for advertising or similar purposes are expressly prohibited.",
"2026-10-14T05:47:00-03:00 - 202.214.143.13"
],
"links": [
{
"href": "https://registro.br/upp",
"rel": "alternate",
"type": "text/html",
"value": "https://rdap.registro.br/autnum/28573"
}
],
"title": "Use and Privacy Policy"
}
],
"objectClassName": "autnum",
"port43": "whois.registro.br",
"rdapConformance": [
"rdap_level_0",
"nicbr_level_0"
],
"remarks": [
{
"description": [
"Some of the data in this object has been removed."
],
"type": "object truncated due to server policy"
}
],
"startAutnum": 28573,
"type": "DIRECT ALLOCATION"
}Frequently asked questions
What is WHOIS?
WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.
What is RDAP, and how does it differ?
RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.
What is the difference between a registrar and a registrant?
The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.
What are nameservers?
Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.
What is DNSSEC?
DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.
Why is the contact information redacted?
Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.