Organization
University of the Pacific
UOP
Location
Stockton (Pacific)
California, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- California
- City
- Stockton (Pacific)
- Continent
- North America
- Coordinates
- 37.9801, -121.312 View on map ↗
Network Information
IP Range 138.9.0.0 – 138.9.255.255 CIDR 138.9.0.0/16 Network Name UOP Handle NET-138-9-0-0-1 Type DIRECT ALLOCATION Parent Network NET-138-0-0-0-0 Organization University of the Pacific Organization ID UNIVER-95 Address 3601 Pacific Ave., Stockton, CA, 95211, United States Country United States (US) Registry ARIN Registered On Jan 17, 1990 Last Updated Mar 20, 2025 Status
active
ASN & Routing
Origin AS AS18663 AS Name UOP-AS - University of the Pacific, US Announced Prefix 138.9.2.0/23 AS Registry ARIN Prefix Country United States (US) Allocated 1990-01-17 RPKI Origin Not found (no ROA covers this prefix)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "138.9.0.0",
"length": 16
}
],
"endAddress": "138.9.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-20T11:52:53-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-03-20T12:35:51-04:00"
}
],
"handle": "SYSTE837-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SYSTE837-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/poc/SYSTE837-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"technical",
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "3601 Pacific Ave\nStockton\nCA\n95211\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Systems"
],
[
"org",
{},
"text",
"University of the Pacific"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-209-946-7461"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-18T11:27:34-04:00"
},
{
"eventAction": "registration",
"eventDate": "2017-09-18T14:32:48-04:00"
}
],
"handle": "SUMAB-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SUMAB-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/poc/SUMAB-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-27T18:21:02-04:00"
},
{
"eventAction": "registration",
"eventDate": "2013-12-18T09:04:01-05:00"
}
],
"handle": "DNSAD303-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DNSAD303-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/poc/DNSAD303-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"dns"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "3601 Pacific Ave\nStockton\nCA\n95211\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"dnsadmin"
],
[
"org",
{},
"text",
"University of the Pacific"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-209-946-2251"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-24T12:16:10-04:00"
},
{
"eventAction": "registration",
"eventDate": "2014-09-16T18:20:16-04:00"
}
],
"handle": "DOUMA1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DOUMA1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/poc/DOUMA1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-06-24T11:34:18-04:00"
},
{
"eventAction": "registration",
"eventDate": "1990-01-17T00:00:00-05:00"
}
],
"handle": "UNIVER-95",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UNIVER-95",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/org/UNIVER-95",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University of the Pacific"
],
[
"adr",
{
"label": "3601 Pacific Ave.\nStockton\nCA\n95211\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-20T11:52:53-04:00"
},
{
"eventAction": "registration",
"eventDate": "2025-03-20T12:35:51-04:00"
}
],
"handle": "SYSTE837-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/SYSTE837-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/poc/SYSTE837-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc",
"technical",
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "3601 Pacific Ave\nStockton\nCA\n95211\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Systems"
],
[
"org",
{},
"text",
"University of the Pacific"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-209-946-7461"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-27T18:21:02-04:00"
},
{
"eventAction": "registration",
"eventDate": "2013-12-18T09:04:01-05:00"
}
],
"handle": "DNSAD303-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DNSAD303-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/poc/DNSAD303-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "3601 Pacific Ave\nStockton\nCA\n95211\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"dnsadmin"
],
[
"org",
{},
"text",
"University of the Pacific"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-209-946-2251"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-03-20T12:46:32-04:00"
},
{
"eventAction": "registration",
"eventDate": "1990-01-17T00:00:00-05:00"
}
],
"handle": "NET-138-9-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/138.9.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-138-9-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/138.9.2.0"
}
],
"name": "UOP",
"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/138.9.2.0"
}
],
"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/138.9.2.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-138-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "138.9.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.