Data as of Nov 7, 2026
198.147.138.0/23
1 residential-proxy exit · 30 daysUniversity of Texas System Administration
Residential-proxy exits
Proxy exits
1
0.20% of its addresses · 30 days
Spread
1 of 2
/24s with at least one exit
Providers
12
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
357 observations
Proxy providers listing exits
- ColaProxy
- EnigmaProxy
- Evomi
- FastProxy
- GhostConnect
- InfiniteProxies
- LudaxProxy
- NovaProxy
- ProxyEmpire
- Thordata
- TrueProxies
- VantageProxies
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 |
|---|---|---|---|---|---|---|
| 198.147.138.0/23 | 512 | NETBLK-UTSYSTEM | University of Texas System Administration (UTSA) · US | Direct Allocation | May 28, 1993 | netadmin@ |
| └ 198.147.138.0/24 | 256 | UTSYSTEM1 | unknown | — | — | — |
| └ 198.147.139.0/24 | 256 | UTSYSTEM2 | unknown | — | — | — |
Network & registry
Origin network
AS36450
US
- Name
- University of Texas System Administration
- Type
- Education
- Registered
- Jan 6, 2006
- Domain
- utsystem.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
- Feb 2006 · 21 yr
- Origin networks
- 2
- Last change of origin
- Feb 2006
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS36450 | RADB | University of Texas System Administration | MAINT-AS6922 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 198.
147. 138. 0/ 23 - Netname
- NETBLK-UTSYSTEM
- Registrant
- University of Texas System Administration
- Organization
- University of Texas System Administration (UTSA)
- Org address
- 210 W. 7th St, Austin, TX, 78701
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-198-147-138-0-1
- Parent
- NET-198-0-0-0-0
- Created
- May 28, 1993
- RIR
- ARIN
- Country
- US
- Delegated
- May 28, 1993
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN