Data as of Nov 10, 2026
198.215.48.0/20
No anonymizer space · no proxy exits in 30 daysUniversity of Texas Southwestern Medical Center · space held by University of Texas System
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 |
|---|---|---|---|---|---|---|
| 198.215.0.0/16 | 65,536 | NETBLK-THENET-CIDR-C3 | University of Texas System (UTS-2-Z) · US | Direct Allocation | Jun 30, 1993 | abuse@ |
| └ 198.215.48.0/20 | 4,096 | UTSW-MHFP-B1 | UT Southwestern / Maternal Health and Family Planning (USMHFP) · US | Reassigned | Jun 13, 1994 | domains@ |
Network & registry
Registry
Holder
- Organization
- University of Texas System
- Handle
- UTS-2-Z
- Range
- 198.
215. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Jun 30, 1993
- Legacy
- yes
Origin network
AS13998
US
- Name
- University of Texas Southwestern Medical Center
- Type
- Education
- Registered
- Oct 1, 1999
- Domain
- utsouthwestern.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
- Feb 2014
- Current origin since
- Jan 2018 · 8.8 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 198.
215. 48. 0/ 20 - Netname
- UTSW-MHFP-B1
- Registrant
- UT Southwestern / Maternal Health and Family Planning
- Organization
- UT Southwestern / Maternal Health and Family Planning (USMHFP)
- Org address
- 5323 Harry Hines Blvd., Dallas, TX, 75235-8595
- Org country
- US
- Type
- Reassigned
- Handle
- NET-198-215-48-0-1
- Parent
- NET-198-215-0-0-1
- Created
- Jun 13, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 30, 1993
- Status
- assigned
Report abuse
Abuse contact
- domains@
utsouthwestern. edu - Name
- UT Southwestern Medical Center
- Phone
- +1-214-648-0642
- Handle
- USMC-ARIN