139.78.0.39
Education
Data retrieved at
Network
ASN
IP Range
Company
Oklahoma State University
Network
OKSTATE
Using networksdb.io for network lookups.
Hostname
Not available.
AS Domain
okstate.edu
Using host.io for pre-visualize domains.
Type
Education
Handle
NET-139-78-0-0-1
Registered
1990-02-12
Last Changed
2022-08-10
View raw RDAP
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "139.78.0.0",
"length": 16
}
],
"endAddress": "139.78.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-03T12:12:50-04:00"
},
{
"eventAction": "registration",
"eventDate": "2003-03-05T17:56:18-05:00"
}
],
"handle": "NSO-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NSO-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
},
{
"href": "https://whois.arin.net/rest/poc/NSO-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "101 IT Building\r\nOklahoma State University\nStillwater\nOK\n74078\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Security Officer"
],
[
"org",
{},
"text",
"Oklahoma State University"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-405-744-7858"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-03T12:12:42-04:00"
},
{
"eventAction": "registration",
"eventDate": "2012-01-20T11:57:30-05:00"
}
],
"handle": "HOSTM1765-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HOSTM1765-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
},
{
"href": "https://whois.arin.net/rest/poc/HOSTM1765-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "101 IT Building\nStillwater\nOK\n74078\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Hostmaster"
],
[
"org",
{},
"text",
"Oklahoma State University"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-405-744-4357"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-06-10T18:20:50-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-06-10T18:20:50-04:00"
}
],
"handle": "OSU-7-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/OSU-7-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
},
{
"href": "https://whois.arin.net/rest/org/OSU-7-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Oklahoma State University"
],
[
"adr",
{
"label": "407 Whitehurst\nOklahoma State University\nStillwater\nOK\n74078\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-03T12:12:42-04:00"
},
{
"eventAction": "registration",
"eventDate": "2012-01-20T11:57:30-05:00"
}
],
"handle": "HOSTM1765-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HOSTM1765-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
},
{
"href": "https://whois.arin.net/rest/poc/HOSTM1765-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "101 IT Building\nStillwater\nOK\n74078\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Hostmaster"
],
[
"org",
{},
"text",
"Oklahoma State University"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-405-744-4357"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-08-10T15:17:46-04:00"
},
{
"eventAction": "registration",
"eventDate": "1990-02-12T00:00:00-05:00"
}
],
"handle": "NET-139-78-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/139.78.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
},
{
"href": "https://whois.arin.net/rest/net/NET-139-78-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/139.78.0.39"
}
],
"name": "OKSTATE",
"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/139.78.0.39"
}
],
"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/139.78.0.39"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-139-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "139.78.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}
Security
No security threats detected for this IP.
VPN
Proxy
Tor
Hosting
Residential Proxy
Bogon
Abuser
Crawler
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Unknown.
No valid ROA was found for this prefix.
UNKNOWN
Validated Prefix
139.78.0.0/16
Authorized ASN
Not available.
Abuse Contacts
IP Geolocation
Country
United States
City
Stillwater (📍 74074)
Oklahoma
Time Zone
America/Chicago
Coordinates
36.1021, -97.0636
Continent
North America
European Union
No.
Phone prefix
+1
Currency
US Dollar (USD $)