Carrier profile · USDOT 3031787 · Updated Jun 13, 2026
WILLIAMSON DEVELOPMENT LLC
DBA UUCON
10 power unitsavg 8 yrLocal · 1 statesGLENDALE, AZ50/100
AUTHORITY STATUS UNKNOWN
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)
- 10
- Observed power (24 mo)
- 2
- Trailers (towed)
- 2
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
2023
Newest model yr
2010
Oldest model yr
50.0%
VINs decoded
Unit roster· VIN-decoded from inspections · NHTSA vPIC
| VIN | Type | Year | Make | Model | Insp. | Last seen |
|---|---|---|---|---|---|---|
| 3AKJGEDVXJDJR3911 | Truck-Tractor | 2018 | FREIGHTLINER | Cascadia | 2 | Oct 7, 2025 |
| 1L9KD2321PS585136 | Trailer | 2023 | LAC WELDIN | — | 1 | Oct 7, 2025 |
| 1M2GR4GC4MM024890 | Truck | 2021 | MACK | Granite | 1 | Feb 17, 2025 |
| 1F9FS1821A1025584 | Trailer | 2010 | FLEMING MF | — | 1 | Aug 28, 2024 |
Showing 4 · most-inspected first.