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Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
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AS46512
UT-MEDICAL-CENTER - University of Tennessee Medical Center Announcing routescachedAS nameUT-MEDICAL-CENTER
OrganisationUniversity of Tennessee Medical Center
Registry (RIR)ARIN
HandleAS46512
RangeAS46512
Registered08 Oct 2008
Last changed02 Mar 2012
5IPv4 prefixes
0IPv6 prefixes
4Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS3450 | UTK - University of Tennessee | 283 |
| AS22909 | COMCAST-22909 - Comcast Cable Communications, LLC | 253 |
| AS701 | UUNET - Verizon Business | 238 |
| AS7018 | ATT-INTERNET4 - AT&T Enterprises, LLC | 26 |
Downstreams
None seen.
IPv4 prefixes (5)
RPKI-validate all prefixes of AS46512
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | University of Tennessee Medical Center | UHS-135 | 1924 Alcoa Highway, Knoxville, TN, 37920, United States | |
| administrative | Admin | ADMIN8851-ARIN | [email protected], +1-865-305-4357 | 1924 Alcoa Hwy, Knoxville, TN, 37920, United States |
| technical | Tech | TECH308-ARIN | [email protected], +1-865-305-4357 | 1924 Alcoa Hwy, Knoxville, TN, 37920, United States |
| abuse | Abuse | ABUSE9145-ARIN | [email protected], +1-865-305-4357 | 1924 Alcoa Hwy, Knoxville, TN, 37920, United States |
| abuse | Network Abuse | NETWO2582-ARIN | [email protected], +1-865-251-4500 | 1924 Alcoa Highway, Knoxville, TN, 37920, United States |
| noc | NOC | NOC3140-ARIN | [email protected], +1-865-251-4500 | 1924 Alcoa Hwy, Knoxville, TN, 37920, United States |
| technical | Tech | TECH308-ARIN | [email protected], +1-865-305-4357 | 1924 Alcoa Hwy, Knoxville, TN, 37920, United States |
Raw registry response
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"endAutnum": 46512,
"entities": [
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"events": [
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"eventAction": "last changed",
"eventDate": "2026-09-30T08:41:21-04:00"
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{
"eventAction": "registration",
"eventDate": "2024-09-30T11:51:13-04:00"
}
],
"handle": "ADMIN8851-ARIN",
"links": [
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},
{
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}
],
"objectClassName": "entity",
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"title": "Registration Comments"
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],
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{
"events": [
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},
{
"eventAction": "registration",
"eventDate": "2024-09-30T11:50:04-04:00"
}
],
"handle": "ABUSE9145-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ABUSE9145-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46512"
},
{
"href": "https://whois.arin.net/rest/poc/ABUSE9145-ARIN",
"rel": "alternate",
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}
],
"objectClassName": "entity",
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{
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"title": "Registration Comments"
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],
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],
"events": [
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},
{
"eventAction": "registration",
"eventDate": "2008-06-24T08:13:59-04:00"
}
],
"handle": "UHS-135",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46512"
},
{
"href": "https://whois.arin.net/rest/org/UHS-135",
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],
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},
{
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"eventDate": "2008-06-23T14:00:08-04:00"
}
],
"handle": "NETWO2582-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NETWO2582-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46512"
},
{
"href": "https://whois.arin.net/rest/poc/NETWO2582-ARIN",
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}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2010-06-17"
],
"title": "Unvalidated POC"
}
],
"roles": [
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],
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},
{
"events": [
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},
{
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}
],
"handle": "NOC3140-ARIN",
"links": [
{
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"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46512"
},
{
"href": "https://whois.arin.net/rest/poc/NOC3140-ARIN",
"rel": "alternate",
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"value": "https://rdap.arin.net/registry/autnum/46512"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2010-06-18"
],
"title": "Unvalidated POC"
}
],
"roles": [
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],
"vcardArray": [
"vcard",
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],
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]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-09-30T08:41:29-04:00"
},
{
"eventAction": "registration",
"eventDate": "2008-06-23T13:54:12-04:00"
}
],
"handle": "TECH308-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TECH308-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46512"
},
{
"href": "https://whois.arin.net/rest/poc/TECH308-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/46512"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"https://www.utmedicalcenter.org"
],
"title": "Registration Comments"
}
],
"roles": [
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],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
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],
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},
"text",
[
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]
],
[
"fn",
[],
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],
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"org",
[],
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],
[
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"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
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]
},
"text",
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]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-03-02T08:03:18-05:00"
},
{
"eventAction": "registration",
"eventDate": "2008-10-07T16:24:00-04:00"
}
],
"handle": "AS46512",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/46512",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/46512"
},
{
"href": "https://whois.arin.net/rest/asn/AS46512",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/46512"
}
],
"name": "UT-MEDICAL-CENTER",
"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/autnum/46512"
}
],
"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/autnum/46512"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"remarks": [
{
"description": [
"www.utmedicalcenter.org"
],
"title": "Registration Comments"
}
],
"startAutnum": 46512,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.
