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
2600:4040:b188:f400:c5a0:f334:2687:5b6c
Record source
rdap
Cached at
2026-10-22 07:17:24 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": "2600:4000::",
"length": 24
}
],
"endAddress": "2600:40ff:ffff:ffff:ffff:ffff:ffff:ffff",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-27T09:05:55-04:00"
},
{
"eventAction": "registration",
"eventDate": "2016-08-18T13:07:50-04:00"
}
],
"handle": "ABUSE5603-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE5603-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE5603-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "22001 Loudoun County Parkway\nAsburn\nVA\n20147\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Abuse"
],
[
"org",
[],
"text",
"Verizon"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"abuse@verizon.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-900-0241"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-10T14:28:23-04:00"
},
{
"eventAction": "registration",
"eventDate": "2006-07-18T11:57:46-04:00"
}
],
"handle": "IPADM314-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IPADM314-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
},
{
"href": "https://whois.arin.net/rest/poc/IPADM314-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"This POC is for Frontier IP management use only.",
"Frontier Referral Server: rwhois://rwhois.frontiernet.net:4321",
"",
"Abuse issues must be sent to abuse email at abuse@support.ftr.com or through ABUSE3-ARIN.",
"",
"Requests for Subscriber Internet Records (information on a Frontier IP Address or Email Address), Telephone Records, Trap and Trace, etc. must be sent to Security Operations.",
"",
"Security Operations",
"Frontier Communications Corporation",
"1800 41st St, Suite N-100",
"Everett, WA 98203",
"Tel: (888) 637-9625",
"Fax: (425) 258-9379",
"Email: sec.ops@FTR.com"
],
"title": "Registration Comments"
}
],
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "95 Fitzhugh St N\nRochester\nNY\n14614\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"ipadmin"
],
[
"org",
[],
"text",
"Frontier Communications"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"ipadmin@support.ftr.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-866-474-7662"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-23T15:20:23-04:00"
},
{
"eventAction": "registration",
"eventDate": "2002-11-06T17:57:04-05:00"
}
],
"handle": "VIS1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/VIS1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
},
{
"href": "https://whois.arin.net/rest/poc/VIS1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Admin Interaction email only. Does not handle Abuse or Security issues."
],
"title": "Registration Comments"
}
],
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "1880 Campus Commons Dr\nReston\nVA\n20191\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Verizon Internet Services"
],
[
"org",
[],
"text",
"Verizon Internet Services"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"ip-mgmt@verizon.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-243-6994"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-07-15T17:11:09-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-10-10T16:20:39-04:00"
}
],
"handle": "VZDNS1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/VZDNS1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
},
{
"href": "https://whois.arin.net/rest/poc/VZDNS1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"We only manage Verizon's internal IT Reverse DNS Zones."
],
"title": "Registration Comments"
}
],
"roles": [
"dns"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "2785 Mitchell Dr.\nWalnut Creek\nCA\n94598\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"VZ-DNSADMIN"
],
[
"org",
[],
"text",
"Verizon"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"dnsadmin@verizon.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-900-0241"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-27T09:05:45-04:00"
},
{
"eventAction": "registration",
"eventDate": "2002-08-24T08:09:34-04:00"
}
],
"handle": "ABUSE3-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE3-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE3-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Claims of copyright infringement: copyright@verizonbusiness.com.",
"",
"Reports of child pornography: abuse-cp@verizonbusiness.com.",
"",
"Illegal use or network security issues: security@verizonbusiness.com.",
"",
"SPAM or other email abuse: abuse-mail@verizonbusiness.com. (Spam complaints must include full header information from the offending email.)",
"",
"Phishing or spoofing: phishing@verizonbusiness.com.",
"",
"USENET abuse: abuse-news@verizonbusiness.com."
],
"title": "Registration Comments"
}
],
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "22001 Loudoun County Parkway\nAshburn\nVA\n20147\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"abuse"
],
[
"org",
[],
"text",
"WorldCom/UUNET Technologies, Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"abuse-mail@verizonbusiness.com"
],
[
"email",
[],
"text",
"abuse@verizon.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-900-0241"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-10-01T10:52:57-04:00"
},
{
"eventAction": "registration",
"eventDate": "2006-05-30T14:02:27-04:00"
}
],
"handle": "MCICS",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MCICS",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
},
{
"href": "https://whois.arin.net/rest/org/MCICS",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Verizon Business"
],
[
"adr",
{
"label": "22001 Loudoun County Pkwy\nAshburn\nVA\n20147\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-05-31T10:04:15-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-03-15T17:24:38-04:00"
}
],
"handle": "NET6-2600-4000-1",
"ipVersion": "v6",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/2600:4000::",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
},
{
"href": "https://whois.arin.net/rest/net/NET6-2600-4000-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"name": "WIRE-V6",
"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/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"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/2600:4040:b188:f400:c5a0:f334:2687:5b6c"
}
],
"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": "2600:4000::",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}Available registry data
Open recent cached IPv6 registry records without creating another upstream WHOIS request.