Registry · RDAP Original response
https://rdap.arin.net/registry/ip/131.238.0.0/16
{
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"cidr0_cidrs": [
{
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}
],
"endAddress": "131.238.255.255",
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{
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"eventDate": "2026-02-23T14:33:54-05:00"
},
{
"eventAction": "registration",
"eventDate": "2012-05-04T09:30:57-04:00"
}
],
"handle": "NAC92-ARIN",
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{
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"type": "application/rdap+json",
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},
{
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}
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[
[
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[
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],
[
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[
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[
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[
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{
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{
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},
{
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}
],
"handle": "NTC7-ARIN",
"links": [
{
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"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/poc/NTC7-ARIN",
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{
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},
{
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}
],
"handle": "NAC36-ARIN",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/poc/NAC36-ARIN",
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"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
}
],
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[
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"text",
[
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]
],
[
"fn",
[],
"text",
"Network Abuse Contact"
],
[
"org",
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"text",
"University of Dayton"
],
[
"kind",
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"group"
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[
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"text",
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],
[
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{
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},
{
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{
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},
{
"eventAction": "registration",
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}
],
"handle": "NOC1777-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC1777-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/poc/NOC1777-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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"status": [
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],
"vcardArray": [
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[
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[
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{
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},
"text",
[
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""
]
],
[
"fn",
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"text",
"Network Operations Contact"
],
[
"org",
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"text",
"University of Dayton"
],
[
"kind",
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"text",
"group"
],
[
"email",
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"text",
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],
[
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{
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"events": [
{
"eventAction": "last changed",
"eventDate": "2023-03-08T21:12:38-05:00"
},
{
"eventAction": "registration",
"eventDate": "2023-03-08T21:12:38-05:00"
}
],
"handle": "UNIVER-139-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UNIVER-139-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/org/UNIVER-139-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
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[
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"4.0"
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[
"fn",
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"text",
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[
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{
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},
"text",
[
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[
"kind",
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{
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},
{
"eventAction": "registration",
"eventDate": "2005-03-21T19:30:22-05:00"
}
],
"handle": "NTC7-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NTC7-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/poc/NTC7-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
}
],
"objectClassName": "entity",
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"roles": [
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],
"status": [
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],
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[
[
"version",
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[
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{
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},
"text",
[
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"",
"",
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"",
""
]
],
[
"fn",
[],
"text",
"Network Technical Contact"
],
[
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"text",
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[
"kind",
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"text",
"group"
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[
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"text",
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[
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{
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},
"text",
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]
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},
{
"events": [
{
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},
{
"eventAction": "registration",
"eventDate": "2005-03-21T19:30:16-05:00"
}
],
"handle": "NAC36-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NAC36-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/poc/NAC36-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
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],
"vcardArray": [
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[
[
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],
[
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{
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},
"text",
[
"",
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"",
"",
"",
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""
]
],
[
"fn",
[],
"text",
"Network Abuse Contact"
],
[
"org",
[],
"text",
"University of Dayton"
],
[
"kind",
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"text",
"group"
],
[
"email",
[],
"text",
"abuse@udayton.edu"
],
[
"tel",
{
"type": [
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]
},
"text",
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]
]
]
},
{
"events": [
{
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"eventDate": "2026-02-23T14:33:45-05:00"
},
{
"eventAction": "registration",
"eventDate": "2005-03-21T19:30:18-05:00"
}
],
"handle": "NOC1777-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC1777-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/poc/NOC1777-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
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],
"status": [
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],
"vcardArray": [
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[
[
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],
[
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{
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},
"text",
[
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""
]
],
[
"fn",
[],
"text",
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],
[
"org",
[],
"text",
"University of Dayton"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"noc@udayton.edu"
],
[
"tel",
{
"type": [
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]
},
"text",
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]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-03-28T19:52:16-04:00"
},
{
"eventAction": "registration",
"eventDate": "1989-02-03T00:00:00-05:00"
}
],
"handle": "NET-131-238-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/131.238.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
},
{
"href": "https://whois.arin.net/rest/net/NET-131-238-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/131.238.0.0/16"
}
],
"name": "DAYTON",
"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/131.238.0.0/16"
}
],
"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/131.238.0.0/16"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-131-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
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"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "131.238.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}