Registry · RDAP Original response
https://rdap.arin.net/registry/ip/128.9.0.0
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "128.9.0.0",
"length": 16
}
],
"endAddress": "128.9.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-07T13:38:04-04:00"
}
],
"handle": "ACT-ORG-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ACT-ORG-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
},
{
"href": "https://whois.arin.net/rest/poc/ACT-ORG-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative",
"technical",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "4676 Admiralty Way, Suite 1001\nMarina del Rey\nCA\n90292\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"IPC Computing Services"
],
[
"org",
[],
"text",
"USC/Information Sciences Institute"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"action@isi.edu"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-310-448-8289"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-09-21T13:24:09-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-09-08T09:58:57-04:00"
}
],
"handle": "USC-32-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/USC-32-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
},
{
"href": "https://whois.arin.net/rest/org/USC-32-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"University of Southern California"
],
[
"adr",
{
"label": "Information Sciences Institute\n4676 Admiralty Way, Suite 1001\nMarina del Rey\nCA\n90292\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-07T13:38:04-04:00"
}
],
"handle": "ACT-ORG-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ACT-ORG-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
},
{
"href": "https://whois.arin.net/rest/poc/ACT-ORG-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "4676 Admiralty Way, Suite 1001\nMarina del Rey\nCA\n90292\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"IPC Computing Services"
],
[
"org",
[],
"text",
"USC/Information Sciences Institute"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"action@isi.edu"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-310-448-8289"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-09-29T04:50:07-04:00"
},
{
"eventAction": "registration",
"eventDate": "1984-08-01T00:00:00-04:00"
}
],
"handle": "NET-128-9-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/128.9.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-128-9-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/128.9.0.0"
}
],
"name": "ISI-NET",
"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/128.9.0.0"
}
],
"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/128.9.0.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-128-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "128.9.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}