Carrier profile · USDOT 3606119 · Updated Jun 13, 2026
STX UNDERGROUND LLC
2 power unitsavg 6.8 yrLocal · 1 statesBROWNSVILLE, TX74/100
AUTHORITY STATUS UNKNOWNHAZMAT
Equipment
Haulable capacity (power units only — trailers are towed context), equipment mix, and the VIN-decoded unit roster. Click any VIN to trace that unit across every carrier that has run it.
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 2
- Observed power (24 mo)
- 5
- Trailers (towed)
- 7
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2024
Newest model yr
1999
Oldest model yr
25.0%
VINs decoded
Unit roster· VIN-decoded from inspections · NHTSA vPIC
| VIN | Type | Year | Make | Model | Insp. | Last seen |
|---|---|---|---|---|---|---|
| 1FDFF6LT6RDA11300 | Incomplete - Chassis Cab (Single Cab) | 2024 | FORD | F-600 | 8 | Dec 4, 2025 |
| 7JEPU2127MG000706 | Trailer | 2021 | LUCON | Lucon | 5 | Dec 4, 2025 |
| 1JK0DT182XA002320 | Trailer | 1999 | INTERSTATE TRAILER | Interstate Trailers, Inc. | 3 | May 6, 2025 |
| 16JF01628R1052207 | Trailer | 2024 | BELS | — | 2 | Jul 11, 2026 |
| 1HTKJPVK8NH557758 | Power unit | 2022 | CHEV | — | 2 | Jul 11, 2026 |
| 3C7WRNBL6FG539377 | Power unit | 2015 | RAM | — | 2 | Oct 13, 2025 |
| 5HZBF1626DLKD1265 | Trailer | 2013 | VACT | — | 1 | Oct 13, 2025 |
| 1FD0W5HN4PEC86942 | Power unit | 2023 | FORD | — | 1 | Jan 18, 2025 |
| 4KNBF2824NL162624 | Trailer | 2022 | TOWM | — | 1 | Jan 18, 2025 |
| 7NWH16A89PK050167 | Trailer | 2023 | VERM | — | 1 | Oct 22, 2024 |
| 3C7WRSBL5NG141798 | Power unit | 2022 | RAM | — | 1 | Sep 27, 2024 |
| 16V1D1724P5268802 | Trailer | 2023 | BIGT | — | 1 | Sep 27, 2024 |
Showing 12 · most-inspected first.