Registry · RDAP Original response
https://rdap.arin.net/registry/ip/129.19.0.0
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "129.19.0.0",
"length": 18
}
],
"endAddress": "129.19.63.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-06T19:57:39-05:00"
},
{
"eventAction": "registration",
"eventDate": "2024-02-07T15:08:20-05:00"
}
],
"handle": "SSJ11-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SSJ11-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
},
{
"href": "https://whois.arin.net/rest/poc/SSJ11-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "601 S Howes St\nFort Collins\nCO\n80521\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Steve Steve Juarez"
],
[
"n",
[],
"text",
[
"Juarez",
"Steve",
"Steve",
"",
""
]
],
[
"kind",
[],
"text",
"individual"
],
[
"email",
[],
"text",
"steve.juarez@colostate.edu"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-970-491-4150"
],
[
"tel",
{
"type": [
"work",
"cell"
]
},
"text",
"+1-970-443-3520"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-12T10:28:56-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-03-07T18:18:39-05:00"
}
],
"handle": "DNSAD191-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DNSAD191-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
},
{
"href": "https://whois.arin.net/rest/poc/DNSAD191-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Academic Computing and Networking Services\nColorado State University\nFort Collins\nCO\n80523\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"DNS Administrator"
],
[
"org",
[],
"text",
"Colorado State University"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"dns.admin@colostate.edu"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-970-491-5600"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-970-491-1958"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-11-25T11:09:46-05:00"
}
],
"handle": "CSU-2",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/CSU-2",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
},
{
"href": "https://whois.arin.net/rest/org/CSU-2",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Colorado State University"
],
[
"adr",
{
"label": "Academic Computing and Networking Services\nColorado State University\n1018 Campus Delivery\nFort Collins\nCO\n80523\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2019-01-15T15:50:00-05:00"
},
{
"eventAction": "registration",
"eventDate": "2019-01-15T15:50:00-05:00"
}
],
"handle": "NET-129-19-0-0-2",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/129.19.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-129-19-0-0-2",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
},
{
"href": "https://rdap.arin.net/registry/ip/129.19.0.0/16",
"rel": "up",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.19.0.0"
}
],
"name": "CSU-FRGP-19",
"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/129.19.0.0"
}
],
"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/129.19.0.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-129-19-0-0-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "129.19.0.0",
"status": [
"active"
],
"type": "ALLOCATION"
}