Carrier profile · USDOT 858640 · MC-439893 · Updated Jun 13, 2026
ROBERT R NEWBY
DBA GREENFIELD TRANSPORT
3 power unitsavg 16 yrLocal · 1 statesSAN LUIS OBISPO, CA50/100
CARRIER ACTIVEMC-439893 ACTIVE
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)
- 3
- Observed power (24 mo)
- 2
- Trailers (towed)
- 1
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
2016
Newest model yr
2001
Oldest model yr
33.3%
VINs decoded
Unit roster· VIN-decoded from inspections · NHTSA vPIC
| VIN | Type | Year | Make | Model | Insp. | Last seen |
|---|---|---|---|---|---|---|
| 1XKDDP9X8GJ486855View sourced platform decode | Truck-Tractor | 2016 | KENWORTH | T8 Series | 1 | Feb 26, 2026 |
| 1C9GL452311772103View sourced platform decode | Trailer | 2001 | COZA | — | 1 | Feb 13, 2026 |
| 5KJJALDR0DPFA1805View sourced platform decode | Power unit | 2013 | WSTR | — | 1 | Feb 13, 2026 |
Showing 3 · most-inspected first.