Data as of Nov 11, 2026
155.97.0.0/16
No anonymizer space · no proxy exits in 30 daysUniversity of Utah
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
65,536 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 65,535 | >99% | 2 | |
| Hosting | 1 | <0.01% | 1 |
Network & registry
Origin network
AS17055
US
- Name
- University of Utah
- Type
- Education
- Registered
- Jul 18, 2000
- Domain
- utah.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS17055 | RADB | This is a UEN customer route | MAINT-AS210 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 155.
97. 0. 0/ 16 - Netname
- UTAH-N-NET
- Registrant
- University of Utah
- Organization
- University of Utah (UNIVER-15-Z)
- Org address
- University of Utah, Salt Lake City, UT, 84111
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-155-97-0-0-1
- Parent
- NET-155-0-0-0-0
- Created
- Nov 1, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 1, 1991
- Status
- assigned
Report abuse
Abuse contact
- security@
utah. edu - Name
- University of Utah
- Phone
- +1-801-581-4000
- Handle
- ZU27-ARIN