Registry intelligence
Retrieve the registry allocation record associated with an IPv6 address, including network ownership and registration data.
Cached registry record
This record is a cached response from an internet number registry. It can identify the address allocation or network, but it does not identify an individual device or user.
IPv6 address
2605:a143:2286:8464::1
Record source
rdap
Cached at
2026-09-08 11:18:19 UTC
Cache status
Available for direct result URLs
What WHOIS can tell you
Important limits
A registry record describes an address allocation. It can be incomplete, may represent a provider rather than an end customer, and may change as networks are reassigned. Use it alongside routing and network evidence when investigating an address.
Raw registry response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v6prefix": "2605:A140::",
"length": 28
}
],
"endAddress": "2605:a14f:ffff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-08T12:09:20-05:00"
},
{
"eventAction": "registration",
"eventDate": "2020-01-07T12:02:42-05:00"
}
],
"handle": "CONTA393-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CONTA393-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
},
{
"href": "https://whois.arin.net/rest/poc/CONTA393-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"routing",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Welfenstrasse 22\nMunich\n\n81541\nGermany"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Contabo NOC"
],
[
"org",
[],
"text",
"Contabo GmbH"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"sascha.wintz@contabo.com"
],
[
"email",
[],
"text",
"noc@contabo.de"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+498921268372"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+498921665862"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-08T02:10:03-05:00"
},
{
"eventAction": "registration",
"eventDate": "2020-01-07T11:59:56-05:00"
}
],
"handle": "CONTA392-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CONTA392-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
},
{
"href": "https://whois.arin.net/rest/poc/CONTA392-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Welfenstr. 22\nMunich\n\n81541\nGermany"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Contabo Tech"
],
[
"org",
[],
"text",
"Contabo GmbH"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"wilhelm.zwalina@contabo.de"
],
[
"email",
[],
"text",
"johannes.selg@contabo.de"
],
[
"email",
[],
"text",
"sascha.wintz@contabo.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+498921268372"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+498921665862"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-08-29T09:28:50-04:00"
},
{
"eventAction": "registration",
"eventDate": "2019-12-19T18:16:44-05:00"
}
],
"handle": "WINTZ1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/WINTZ1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
},
{
"href": "https://whois.arin.net/rest/poc/WINTZ1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "710 N Tucker Blvd.\nSt. Louis\nMO\n63101\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Sascha Wintz"
],
[
"n",
[],
"text",
[
"Wintz",
"Sascha",
"",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"sascha.wintz@contabo.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-314-680-9792"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-12-07T09:33:38-05:00"
},
{
"eventAction": "registration",
"eventDate": "2020-01-07T11:54:23-05:00"
}
],
"handle": "CAD61-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CAD61-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
},
{
"href": "https://whois.arin.net/rest/poc/CAD61-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2024-12-06"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Aschauer Str. 32a\nMunich\n\n81549\nGermany"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Contabo Abuse Department"
],
[
"org",
[],
"text",
"Contabo GmbH"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"abuse@contabo.de"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+498921268372"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+498921665862"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-11-25T11:09:46-05:00"
},
{
"eventAction": "registration",
"eventDate": "2019-12-23T10:07:42-05:00"
}
],
"handle": "CONTA-48",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CONTA-48",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
},
{
"href": "https://whois.arin.net/rest/org/CONTA-48",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Contabo Inc."
],
[
"adr",
{
"label": "710 N Tucker Blvd. STE 400A\nSt. Louis\nMO\n63101\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-05-28T15:09:29-04:00"
},
{
"eventAction": "registration",
"eventDate": "2020-02-10T16:36:20-05:00"
}
],
"handle": "NET6-2605-A140-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2605:a140::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2605-A140-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"name": "CONTABO-IPV6-1",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/2605:a143:2286:8464::1"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET6-2600-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "2605:a140::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}Available registry data
Open recent cached IPv6 registry records without creating another upstream WHOIS request.