University of Texas Southwestern Medical Center

Data as of 2026-10-18
BGP inherited
This organisation
Netblocks16 · 85,504 IPv4 addresses
IPv6 1 prefix (largest 2620:0:840::/48)
Also registered under this name 152 netblocks across 15 separate records
Record ID250156543
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 5 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (16)

⬇ export CSV
CIDR Org name Registry Status Confidence
129.112.0.0/16 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
129.112.109.0/24 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
129.112.115.0/24 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
198.215.36.0/22 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
198.215.48.0/20 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
198.215.96.0/20 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
198.215.176.0/20 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
198.241.16.0/20 University of Texas Southwestern Medical Center ARIN DIRECT ALLOCATION ● high
199.165.152.0 – 199.165.154.255 University of Texas Southwestern Medical Center ARIN DIRECT ALLOCATION ● high
199.165.152.0/23 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
199.165.154.0/24 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
199.242.234.0/23 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
199.242.234.0 – 199.242.239.255 University of Texas Southwestern Medical Center ARIN DIRECT ALLOCATION ● high
199.242.236.0/22 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high
199.249.214.0/24 University of Texas Southwestern Medical Center ARIN DIRECT ALLOCATION ● high
2620:0:840::/48 University of Texas Southwestern Medical Center BGP ANNOUNCED ● high

IPv6 ranges (1)

CIDR
2620:0:840::/48

Footprint over time

17 weekly snapshots · JSON
19 +5 netblocks since 2026-07-05
2026-07-05 peak 19 2026-10-18

Other domains hosted in this network

what's this?
swmed.edu utsouthwestern.edu

Network trust

what's this?
RPKI hygiene: D how networks compare →
21.1% of checked blocks have valid RPKI ROA coverage (4 of 19)
No discrepancies found among checked blocks.

NIC Handles

AS13998 USMC-ARIN USMC-ARIN USMC-ARIN USMCAD-Z