Data as of Nov 9, 2026
129.120.235.0/24
No anonymizer space · no proxy exits in 30 daysUniversity of North Texas
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Jul 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 129.120.0.0/16 since May 2005 | AS589 | Business | 136 | University of North Texas |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 129.120.0.0/16 | 65,536 | UNT4-129-120 | University of North Texas (UNT-Z) · US | Direct Allocation | Nov 6, 1987 | abuse@ |
| └ 129.120.235.0/24 | 256 | UNT4-129-120-235 | UNT Health - Fort Worth (C11575405) · US | Reassigned | Apr 21, 2026 | abuse@ via UNT4-129-120 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- University of North Texas
- Handle
- UNT-Z
- Range
- 129.
120. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Nov 6, 1987
- Legacy
- yes
Origin network
AS589
US
- Name
- University of North Texas
- Type
- Education
- Registered
- Feb 12, 1990
- Domain
- unt.edu
- Website
- www.untsystem.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jul 2026
- Current origin since
- Jul 2026 · 4 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 129.120.235.0/24 | AS589 | /24 | ARIN | RPKI valid |
| 129.120.0.0/16 | AS589 | /16 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS589 | ARIN | UNT Health Fort Worth | MNT-UNT-Z | Sep 2, 2026 |
Whois
Registration for this announcement
- Range
- 129.
120. 235. 0/ 24 - Netname
- UNT4-129-120-235
- Registrant
- UNT Health - Fort Worth
- Organization
- UNT Health - Fort Worth (C11575405)
- Type
- Reassigned
- Handle
- NET-129-120-235-0-1
- Parent
- NET-129-120-0-0-1
- Created
- Apr 21, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 6, 1987
- Status
- assigned
Report abuse
Abuse contact
- abuse@
unt. edu - Name
- Information Security
- Phone
- +1-940-565-2324
- Handle
- INFOR9-ARIN