Data as of Nov 4, 2026
165.6.0.0/16
No anonymizer space · no proxy exits in 30 daysUniversity of Tennessee Medical Center
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin Aug 2026
from AS19956 AT&T Enterprises, LLC, after 8.7 years unannounced
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 165.6.0.0/17 since Jan 2009 | AS46512 | Business | University of Tennessee Medical Center | |
| 165.6.0.0/18 since May 2020 | AS46512 | Business | University of Tennessee Medical Center | |
| 165.6.128.0/18 since Jan 2009 | AS46512 | Business | University of Tennessee Medical Center |
Network & registry
Origin network
AS46512
US
- Name
- University of Tennessee Medical Center
- Type
- Business
- Registered
- Oct 7, 2008
- Domain
- utmedicalcenter.org
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 4
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 3
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 165.6.192.0/18 | AS3450 | RADB | UT Medical Center | MAINT-AS2637 | Nov 13, 2023 |
| 165.6.192.0/19 | AS3450 | RADB | UT Medical Center | MAINT-AS2637 | Nov 13, 2023 |
| 165.6.192.0/20 | AS3450 | RADB | UT Medical Center | MAINT-AS2637 | Nov 13, 2023 |
| 165.6.224.0/19 | AS3450 | RADB | UT Medical Center | MAINT-AS2637 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 165.6.0.0/16
- Netname
- UTK-EDU
- Registrant
- University of Tennessee Medical Center
- Organization
- University of Tennessee Medical Center (UHS-135)
- Org address
- 1924 Alcoa Highway, Knoxville, TN, 37920
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-165-6-0-0-1
- Parent
- NET-165-0-0-0-0
- Created
- Mar 26, 1993
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 26, 1993
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse
- Phone
- +1-865-305-4357
- Handle
- ABUSE9145-ARIN