Free network tools
AS WHOIS
Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
Network Report (All-in-one) BGP Looking Glass BGP Security Check RPKI Validator BGP Hijack & Leak Monitor ASN Intelligence Internet Outages & Anomalies Country Internet Report Domain Insights IP WHOIS AS WHOIS
AS28189
AS28189 - JR & JS ENGENHARIA E COMERCIO LTDA Announcing routesAS nameASN28189
OrganisationJR & JS ENGENHARIA E COMÉRCIO LTDA
CountryBR
Registry (RIR)—
Handle28189
RangeAS28189
Registered05 Mar 2008
Last changed20 May 2024
Abuse contact[email protected]
21IPv4 prefixes
3IPv6 prefixes
11Upstreams
47Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS7195 | AS7195 - EDGEUNO S.A.S | 20059 |
| AS174 | COGENT-174 - Cogent Communications, LLC | 2551 |
| AS264409 | AS264409 - Huge Solucoes Corporativas Ltda | 1981 |
| AS13786 | SEABORN - Seabras 1 USA, LLC | 1813 |
| AS268624 | AS268624 - Gamers Club Ltda | 1477 |
| AS6939 | HURRICANE - Hurricane Electric LLC | 730 |
| AS268243 | AS268243 - LUXFIBRA TELECOM | 100 |
| AS6057 | AS6057 - Administracion Nacional de Telecomunicaciones | 46 |
| AS14840 | AS14840 - BR.Digital Telecom | 28 |
| AS137409 | GSLNETWORKS-AS-AP - GSL Networks Pty LTD | 7 |
| AS61626 | AS61626 - UNIVERSIDADE ESTADUAL DE PONTA GROSSA | 1 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS266931 | AS266931 - RE Servicos de Comunicacao Multimidia | 11973 |
| AS266428 | AS266428 - R L A World Net LTDA | 3308 |
| AS268013 | AS268013 - Optfiber Telecomunicacoes Eirelli | 795 |
| AS262329 | AS262329 - HIT Telecomunicacoes Ltda. | 678 |
| AS270622 | AS270622 - AGINET DATACENTER INFORMATICA LTDA | 652 |
| AS268726 | AS268726 - TOPNET SERVICOS DE TELECOMU E MULTIMIDIA EIRELI-ME | 632 |
| AS264217 | AS264217 - Sem Fone Telecomunicacoes Ltda | 603 |
| AS267462 | AS267462 - Espaco Link Telecomunicacoes LTDA - ME | 574 |
| AS272232 | AS272232 - Union Tel Telecomunicacoes LTDA | 506 |
| AS268890 | AS268890 - ASTERNET SERVICOS DE COMUNICACAO MULTIMIDIA LTDA | 498 |
| AS266500 | AS266500 - SURF TELECOM S.A. | 480 |
| AS268509 | AS268509 - COMPLETA Telecomunicacoes Ltda | 451 |
| AS268788 | AS268788 - HEXA TELECOM LTDA | 419 |
| AS271590 | AS271590 - HELOISA SAMPAIO PINTO TELECOMUNICACOES | 378 |
| AS271677 | AS271677 - Wsim Informatica Ltda. ME | 376 |
IPv4 prefixes (21)
186.224.202.0/23186.224.208.0/21189.90.8.0/21186.224.206.0/23186.224.192.0/23186.224.204.0/23186.224.214.0/23186.224.216.0/21189.90.14.0/23189.90.10.0/23186.224.208.0/20186.224.199.0/24186.224.200.0/21186.224.220.0/23186.224.192.0/20189.90.4.0/22186.224.208.0/23186.224.218.0/23186.224.192.0/21186.224.204.0/22189.90.2.0/23
IPv6 prefixes (3)
RPKI-validate all prefixes of AS28189
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | JR & JS ENGENHARIA E COMÉRCIO LTDA | 54750997000126 | BR | |
| administrative | JR & JS TELECOM LTDA | JJTLT12 | [email protected] | BR |
| administrative, abuse | JR & JS TELECOM LTDA | JJTLT12 | [email protected] | BR |
Raw registry response
{
"objectClassName": "autnum",
"handle": "28189",
"startAutnum": 28189,
"endAutnum": 28189,
"name": "ASN28189",
"type": "DIRECT ALLOCATION",
"country": "BR",
"links": [
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "self",
"href": "https://rdap.registro.br/autnum/28189",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "related",
"href": "https://rdap.registro.br/ip/186.224.192.0/20",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "related",
"href": "https://rdap.registro.br/ip/2804:1a0::/32",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "related",
"href": "https://rdap.registro.br/ip/186.224.208.0/20",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "related",
"href": "https://rdap.registro.br/ip/189.90.2.0/23",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "related",
"href": "https://rdap.registro.br/ip/189.90.4.0/22",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "related",
"href": "https://rdap.registro.br/ip/189.90.8.0/21",
"type": "application/rdap+json"
}
],
"entities": [
{
"objectClassName": "entity",
"handle": "54750997000126",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"kind",
[],
"text",
"org"
],
[
"fn",
[],
"text",
"JR & JS ENGENHARIA E COMÉRCIO LTDA"
],
[
"adr",
[],
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"roles": [
"registrant"
],
"publicIds": [
{
"type": "cnpj",
"identifier": "54.750.997/0001-26"
}
],
"entities": [
{
"objectClassName": "entity",
"handle": "JJTLT12",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"kind",
[],
"text",
"individual"
],
[
"fn",
[],
"text",
"JR & JS TELECOM LTDA"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"lang",
[],
"language-tag",
"pt"
],
[
"adr",
[],
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"roles": [
"administrative"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2021-10-04T20:59:40Z"
},
{
"eventAction": "last changed",
"eventDate": "2021-10-04T20:59:40Z"
}
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2013-03-11T18:07:58Z"
},
{
"eventAction": "last changed",
"eventDate": "2021-10-19T15:55:44Z"
}
],
"links": [
{
"value": "https://rdap.registro.br/entity/54750997000126",
"rel": "self",
"href": "https://rdap.registro.br/entity/54750997000126",
"type": "application/rdap+json"
}
],
"legalRepresentative": "Ricardo Bussolan Juan"
},
{
"objectClassName": "entity",
"handle": "JJTLT12",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"kind",
[],
"text",
"individual"
],
[
"fn",
[],
"text",
"JR & JS TELECOM LTDA"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"lang",
[],
"language-tag",
"pt"
],
[
"adr",
[],
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"roles": [
"administrative",
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2021-10-04T20:59:40Z"
},
{
"eventAction": "last changed",
"eventDate": "2021-10-04T20:59:40Z"
}
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-03-05T12:07:21Z"
},
{
"eventAction": "last changed",
"eventDate": "2024-05-20T12:31:49Z"
}
],
"notices": [
{
"title": "Use and Privacy Policy",
"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.",
"2026-10-19T18:16:19-03:00 - 43.204.219.77"
],
"links": [
{
"value": "https://rdap.registro.br/autnum/28189",
"rel": "alternate",
"href": "https://registro.br/upp",
"type": "text/html"
}
]
}
],
"rdapConformance": [
"rdap_level_0",
"nicbr_level_0"
],
"port43": "whois.registro.br"
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.