License Plate CA 4WF9121 (California) — Rock Trucking Inc
USDOT 3012537 · 2007 Wabash National Corporation
Recorded vehicle, plate and carrier history
These are dated observations in the records available to us. They do not establish ownership, a sale, a transfer date, or continuous use between observations. The latest observation may not describe today’s vehicle or carrier.
| Observed dates | VIN | Plate | Reported carrier |
|---|---|---|---|
| 2026-06-20 | 1JJV532W97L043276 | CA 4WF9121 | ROCK TRUCKING INC · USDOT 3012537 |
| 2024-11-17 | 1JJV532W97L043276 | CA 4WF9121 | SHUNDA TRANSPORTATION INC · USDOT 4021911 |
Evidence: FMCSA inspection observations and retained snapshots of our vehicle records. Coverage is incomplete; an unreported change cannot be dated from these records.
Most recently recorded carrier for this plate
Rock Trucking Inc Active
- USDOT
- 3012537
- MC
- 1814071
- Status
- Active
- Type
- Motor Carrier
- Based in
- Monterey Park, CA
- Power units
- 1
- Drivers
- 1
- Inspections (24 mo)
- 5
- Crashes (24 mo)
- 2
- Vehicle OOS rate
- 75%
Carrier recorded at the latest inspection in the available records (2026-06-20). This does not establish current ownership or confirm that the carrier still operates this vehicle.
View full carrier profile →Authority, insurance & bonds, safety scores, crash history, inspections and the full fleet list.This plate has also been operated by 1 other carrier (listed below).
What this means
License plate CA-4WF9121 appears in FMCSA inspection records 2 times. Recorded on one vehicle: VIN 1JJV532W97L043276 (2007 Wabash National Corporation). Operated by 2 different carriers (DOT numbers) over its inspection history. Most recent operating carrier: Rock Trucking Inc (USDOT 3012537). Vehicle make on file: Wabash (WABASH NAT) (SEMI-TRAILER). No out-of-service violations are recorded under this plate in the available inspection records. Other violations may still be present.
About this plate
Commercial license plate CA-4WF9121 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2024-11-17 to 2026-06-20. The latest inspection was in Arizona, a Level III — driver and paperwork only. That is outside the plate's issuing jurisdiction (California).
Vehicle on this plate
This plate is associated with a single vehicle, a 2007 Wabash National Corporation — VIN 1JJV532W97L043276 (semi-trailer).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 2 inspections on FMCSA record. No out-of-service violations appear in the available records under this plate. This does not mean that every inspection was free of other violations.
Operators
2 carriers have operated vehicles under this plate (most recent first): Rock Trucking Inc (USDOT 3012537) on 2026-06-20; Shunda Transportation Inc (USDOT 4021911) on 2024-11-17.