By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use
https://www.arin.net/resources/registry/whois/tou/
Whois Inaccuracy Reporting
If you see inaccuracies in the results, please visit:
https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
Copyright Notice
Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
Organizations & contacts
2
Organization / registrant
Various Registries (Maintained by ARIN)
VR-ARIN
Address
PO Box 232290
Centreville
VA
20120
United States
Type
org
Registration Comments
Address space was assigned by the InterNIC regardless of
geographic region. The registrations are now being maintained
by various registries, and the in-addr.arpa delegations are
being maintained by ARIN.
There is no known POC for this organization. This is a placeholder record. Please contact hostmaster@arin.net if you can provide contact information for this record.
Unvalidated POC
ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-02-08
Registry · rdap.arin.net
Registry · RDAP Original response
https://rdap.arin.net/registry/ip/172.192.0.0/12
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "172.0.0.0",
"length": 8
}
],
"endAddress": "172.255.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-02-09T15:21:55-05:00"
},
{
"eventAction": "registration",
"eventDate": "2011-02-18T14:57:07-05:00"
}
],
"handle": "CKN23-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CKN23-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/172.192.0.0/12"
},
{
"href": "https://whois.arin.net/rest/poc/CKN23-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/172.192.0.0/12"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"There is no known POC for this organization. This is a placeholder record. Please contact hostmaster@arin.net if you can provide contact information for this record."
],
"title": "Registration Comments"
},
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2025-02-08"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse",
"administrative",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "123 Main St\nAnytown\nVA\n20151\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Contact Known No"
],
[
"n",
[],
"text",
[
"No",
"Contact",
"Known",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"nobody@example.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-800-555-1234"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2018-01-08T17:04:15-05:00"
},
{
"eventAction": "registration",
"eventDate": "1993-05-01T00:00:00-04:00"
}
],
"handle": "VR-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/VR-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/172.192.0.0/12"
},
{
"href": "https://whois.arin.net/rest/org/VR-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/172.192.0.0/12"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Address space was assigned by the InterNIC regardless of\r",
"geographic region. The registrations are now being maintained\r",
"by various registries, and the in-addr.arpa delegations are\r",
"being maintained by ARIN."
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Various Registries (Maintained by ARIN)"
],
[
"adr",
{
"label": "PO Box 232290\nCentreville\nVA\n20120\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2010-06-30T14:37:41-04:00"
},
{
"eventAction": "registration",
"eventDate": "1993-05-01T00:00:00-04:00"
}
],
"handle": "NET-172-0-0-0-0",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/172.0.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/172.192.0.0/12"
},
{
"href": "https://whois.arin.net/rest/net/NET-172-0-0-0-0",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/172.192.0.0/12"
}
],
"name": "NET172",
"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/172.192.0.0/12"
}
],
"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/172.192.0.0/12"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "172.0.0.0",
"status": [
"administrative"
]
}
