License Plate ON S5437N (Ontario) — Duncan & Son Lines Inc
USDOT 44035 · 2020 OTHR Di-Mond Trailers, Inc.
Most recently recorded carrier for this plate
Duncan & Son Lines Inc Active
- USDOT
- 44035
- MC
- 144606
- Status
- Active
- Type
- Carrier & Broker
- Based in
- Buckeye, AZ
- Power units
- 259
- Drivers
- 231
- Inspections (24 mo)
- 419
- Crashes (24 mo)
- 14
- Vehicle OOS rate
- 12.5%
Carrier recorded at the latest inspection in the available records (2026-04-06). 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 ON-S5437N appears in FMCSA inspection records 3 times. Recorded on one vehicle: VIN 2DM421A48LS173001 (2020 OTHR Di-Mond Trailers, Inc.). Operated by 3 different carriers (DOT numbers) over its inspection history. Most recent operating carrier: Duncan & Son Lines Inc (USDOT 44035). Vehicle make on file: OTHR (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 ON-S5437N (Ontario) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2025-02-25 to 2026-04-06. The latest inspection was in California, a Level I — full inspection of the driver and the vehicle. That is outside the plate's issuing jurisdiction (Ontario).
Vehicle on this plate
This plate is associated with a single vehicle, a 2020 OTHR Di-Mond Trailers, Inc. — VIN 2DM421A48LS173001 (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): Duncan & Son Lines Inc (USDOT 44035) on 2026-04-06; Marco Antonio Bustos Gallardo (USDOT 3862042) on 2026-02-04; Keypoint Carriers Limited (USDOT 908748) on 2025-02-25.