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
2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1
Record source
rdap
Cached at
2026-09-17 05:50:40 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": "2607:FB90::",
"length": 28
}
],
"endAddress": "2607:fb9f:ffff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-08T14:48:50-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-01-02T16:30:24-05:00"
}
],
"handle": "DNSAD11-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DNSAD11-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
},
{
"href": "https://whois.arin.net/rest/poc/DNSAD11-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "12920 SE 38th Street\nBellevue\nWA\n98027\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"DNS Administrators"
],
[
"org",
[],
"text",
"T-Mobile USA"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"ARINtechcontact@t-mobile.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-662-4662"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-27T17:23:03-04:00"
},
{
"eventAction": "registration",
"eventDate": "2014-09-23T15:17:31-04:00"
}
],
"handle": "ABUSE4857-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE4857-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE4857-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "12920 SE 38th Street\nBellevue\nWA\n98006\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"abuse"
],
[
"org",
[],
"text",
"T-Mobile US"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"abuse@t-mobile.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-662-4662"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2017-01-28T08:32:29-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-01-02T16:30:24-05:00"
}
],
"handle": "TMOBI",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TMOBI",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
},
{
"href": "https://whois.arin.net/rest/org/TMOBI",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"T-Mobile USA, Inc."
],
[
"adr",
{
"label": "12920 SE 38th Street\nBellevue\nWA\n98006\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2020-11-18T12:29:27-05:00"
},
{
"eventAction": "registration",
"eventDate": "2009-07-14T09:39:44-04:00"
}
],
"handle": "NET6-2607-FB90-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2607:fb90::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2607-FB90-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
}
],
"name": "TMOV6-1",
"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/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
}
],
"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/2607:fb91:5200:8a8b:65a9:64c5:3546:ccb1"
}
],
"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"
],
"remarks": [
{
"description": [
"Geofeed https://raw.githubusercontent.com/tmobile/tmus-geofeed/main/tmus-geo-ip.txt"
],
"title": "Registration Comments"
}
],
"startAddress": "2607:fb90::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}Available registry data
Open recent cached IPv6 registry records without creating another upstream WHOIS request.