Organization
University of Texas Southwestern Medical Center
UTSWMED
Location
Ashburn
Virginia, United States (US)
Hostname
—
Geolocation
United States (US) United States
- Country
- United States (US)
- Region
- Virginia
- City
- Ashburn
- Continent
- North America
- Coordinates
- 39.0438, -77.4874 View on map ↗
Network Information
IP Range 129.112.0.0 – 129.112.255.255 CIDR 129.112.0.0/16 Network Name UTSWMED Handle NET-129-112-0-0-1 Type DIRECT ALLOCATION Parent Network NET-129-0-0-0-0 Organization University of Texas Southwestern Medical Center Organization ID USMCAD-Z Address 5323 Harry Hines, Dallas, TX, 75235-8595, United States Country United States (US) Registry ARIN Registered On Nov 06, 1987 Last Updated Sep 09, 2024 Status
active
ASN & Routing
Origin AS AS13998 AS Name SWMED - University of Texas Southwestern Medical Center, US Announced Prefix 129.112.109.0/24 AS Registry ARIN Prefix Country United States (US) Allocated 1987-11-06 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": "129.112.0.0",
"length": 16
}
],
"endAddress": "129.112.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-05-09T08:18:01-04:00"
},
{
"eventAction": "registration",
"eventDate": "2012-03-26T16:46:28-04:00"
}
],
"handle": "USMC-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/USMC-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.112.109.0"
},
{
"href": "https://whois.arin.net/rest/poc/USMC-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/129.112.109.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"administrative",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "5323 Harry Hines Blvd.\nDallas\nTX\n75390\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"UT Southwestern Medical Center"
],
[
"org",
{},
"text",
"UT Southwestern Medical Center"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-214-648-0642"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-02-21T17:30:59-05:00"
},
{
"eventAction": "registration",
"eventDate": "2024-01-12T11:56:12-05:00"
}
],
"handle": "USMCAD-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/USMCAD-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.112.109.0"
},
{
"href": "https://whois.arin.net/rest/org/USMCAD-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/129.112.109.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University of Texas Southwestern Medical Center"
],
[
"adr",
{
"label": "5323 Harry Hines\nDallas\nTX\n75235-8595\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-09-09T11:16:56-04:00"
},
{
"eventAction": "registration",
"eventDate": "1987-11-06T00:00:00-05:00"
}
],
"handle": "NET-129-112-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/129.112.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/129.112.109.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-129-112-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/129.112.109.0"
}
],
"name": "UTSWMED",
"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/129.112.109.0"
}
],
"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/129.112.109.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-129-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "129.112.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
} Contact details of private individuals are redacted.