License Plate CA 4UZ3927 (California) — Cougar Trans Service Inc
USDOT 3999537 · 2016 Utility Trailer Manufacturer
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 |
|---|---|---|---|
| 2026-07-12 | 1UYVS2531GU539374 | CA 4UZ3927 | COUGAR TRANS SERVICE INC · USDOT 3999537 |
| 2025-02-01 | 1UYVS2531GU539374 | CA 4UZ3927 | BIG BIRD TRUCKING INC · USDOT 3230805 |
| 2025-01-21 | 1UYVS2531GU539374 | CA 4UZ3927 | DALLAS BULL CARRIER INC · USDOT 4170623 |
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
Cougar Trans Service Inc Active
- USDOT
- 3999537
- MC
- 1502783
- Status
- Active
- Type
- Motor Carrier
- Based in
- Fontana, CA
- Power units
- 3
- Drivers
- 3
- Inspections (24 mo)
- 26
- Crashes (24 mo)
- 2
- Vehicle OOS rate
- 45.5%
Carrier recorded at the latest inspection in the available records (2026-07-12). 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 2 other carriers (listed below).
What this means
License plate CA-4UZ3927 appears in FMCSA inspection records 3 times. Recorded on one vehicle: VIN 1UYVS2531GU539374 (2016 Utility Trailer Manufacturer). Operated by 3 different carriers (DOT numbers) over its inspection history. Most recent operating carrier: Cougar Trans Service Inc (USDOT 3999537). Vehicle make on file: Utility (UTIL) (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-4UZ3927 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2025-01-21 to 2026-07-12. The latest inspection was in New Jersey, a Level II — walk-around inspection of the driver and the vehicle. That is outside the plate's issuing jurisdiction (California).
Vehicle on this plate
This plate is associated with a single vehicle, a 2016 Utility Trailer Manufacturer — VIN 1UYVS2531GU539374 (semi-trailer).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 3 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
3 carriers have operated vehicles under this plate (most recent first): Cougar Trans Service Inc (USDOT 3999537) on 2026-07-12; Big Bird Trucking Inc (USDOT 3230805) on 2025-02-01; Dallas Bull Carrier Inc (USDOT 4170623) on 2025-01-21.