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
AS266220
AS266220 - RFS Tecnologia LTDA Announcing routesAS nameASN266220
OrganisationRFS Tecnologia LTDA
CountryBR
Registry (RIR)—
Handle266220
RangeAS266220
Registered26 Apr 2017
Last changed03 Feb 2022
Abuse contact[email protected]
5IPv4 prefixes
6IPv6 prefixes
10Upstreams
10Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS262907 | AS262907 - BRASIL TECPAR AMIGO AVATO | 3656 |
| AS267469 | AS267469 - W8 Telecom Ltda - ME | 802 |
| AS6939 | HURRICANE - Hurricane Electric LLC | 538 |
| AS267507 | AS267507 - SRX TECNOLOGIA DA INFORMACAO LTDA | 35 |
| AS137409 | GSLNETWORKS-AS-AP - GSL Networks Pty LTD | 12 |
| AS6057 | AS6057 - Administracion Nacional de Telecomunicaciones | 10 |
| AS1031 | PEER1-1031 - PEER 1031 LLC | 2 |
| AS7195 | AS7195 - EDGEUNO S.A.S | 2 |
| AS53013 | AS53013 - UFINET BRASIL S.A. | 1 |
| AS61626 | AS61626 - UNIVERSIDADE ESTADUAL DE PONTA GROSSA | 1 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS52600 | AS52600 - Digitotal Networks Telecomunicacoes ltda | 825 |
| AS269472 | AS269472 - X Internet | 745 |
| AS52625 | AS52625 - X-PC Telecom Ltda | 630 |
| AS268054 | AS268054 - GIGA NET INFORMATICA LTDA ME | 557 |
| AS61646 | AS61646 - SINALNET Comunicacoes | 503 |
| AS269627 | AS269627 - Exa Internet | 498 |
| AS267507 | AS267507 - SRX TECNOLOGIA DA INFORMACAO LTDA | 353 |
| AS266107 | AS266107 - EVEN TELECOM | 294 |
| AS268505 | AS268505 - Deep Telecom | 119 |
| AS61893 | AS61893 - RM dos Santos Informatica | 6 |
IPv6 prefixes (6)
RPKI-validate all prefixes of AS266220
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | RFS Tecnologia LTDA | 11605767000160 | BR | |
| administrative | Rafael Filipe Strassburger | RFS680 | [email protected] | BR |
| administrative, abuse | NOC RFS Tec | NORTE6 | [email protected] | BR |
Raw registry response
{
"objectClassName": "autnum",
"handle": "266220",
"startAutnum": 266220,
"endAutnum": 266220,
"name": "ASN266220",
"type": "DIRECT ALLOCATION",
"country": "BR",
"links": [
{
"value": "https://rdap.registro.br/autnum/266220",
"rel": "self",
"href": "https://rdap.registro.br/autnum/266220",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/266220",
"rel": "related",
"href": "https://rdap.registro.br/ip/192.145.216.0/22",
"type": "application/rdap+json"
},
{
"value": "https://rdap.registro.br/autnum/266220",
"rel": "related",
"href": "https://rdap.registro.br/ip/2804:3c90::/32",
"type": "application/rdap+json"
}
],
"entities": [
{
"objectClassName": "entity",
"handle": "11605767000160",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"kind",
[],
"text",
"org"
],
[
"fn",
[],
"text",
"RFS Tecnologia LTDA"
],
[
"adr",
[],
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"roles": [
"registrant"
],
"publicIds": [
{
"type": "cnpj",
"identifier": "11.605.767/0001-60"
}
],
"entities": [
{
"objectClassName": "entity",
"handle": "RFS680",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"kind",
[],
"text",
"individual"
],
[
"fn",
[],
"text",
"Rafael Filipe Strassburger"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"lang",
[],
"language-tag",
"pt"
],
[
"adr",
[],
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"roles": [
"administrative"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2006-03-12T12:00:00Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-05-19T12:35:38Z"
}
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2010-05-10T20:38:40Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-06-11T18:12:11Z"
}
],
"links": [
{
"value": "https://rdap.registro.br/entity/11605767000160",
"rel": "self",
"href": "https://rdap.registro.br/entity/11605767000160",
"type": "application/rdap+json"
}
],
"legalRepresentative": "RAFAEL FILIPE STRASSBURGER"
},
{
"objectClassName": "entity",
"handle": "NORTE6",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"kind",
[],
"text",
"individual"
],
[
"fn",
[],
"text",
"NOC RFS Tec"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"lang",
[],
"language-tag",
"pt"
],
[
"adr",
[],
"text",
[
"",
"",
"",
"",
"",
"",
"BR"
]
]
]
],
"roles": [
"administrative",
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2022-02-01T23:35:00Z"
},
{
"eventAction": "last changed",
"eventDate": "2022-02-01T23:35:00Z"
}
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2017-04-26T11:25:21Z"
},
{
"eventAction": "last changed",
"eventDate": "2022-02-03T13:17:37Z"
}
],
"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.",
"2026-11-06T05:03:54-03:00 - 43.204.219.77"
],
"links": [
{
"value": "https://rdap.registro.br/autnum/266220",
"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.
