Equipment unit · VIN-decoded · NHTSA vPIC

5DN144826SB000458

Not yet decoded
Carriers run under3
16 mo
Inspections3
all-time
OOS inspections0
of 3
First seenFeb 8, 2024
CA
Last seenJun 17, 2025
CA
Inspected under 3 different carriers in 16 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
5DN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
14482

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1995 or 2025

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
000458

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
WESTERN TRAILER COMPANY

Prefix basis · 133 decoded VINs at 100.0% prefix purity.

Model
Western Trailer Company

Prefix basis · 133 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 8, 2024 – Jun 17, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 17, 2025CAII · Walk-around0WILLIAM P DUNN 2728971CZ6890/OK
Jul 11, 2024CAV · Vehicle-only0SOUTHWICK & SON TRUCKING 1709931CZ-6890/OK
Feb 8, 2024CAIII · Driver-only2FLOYD LLC 812521NONE/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILLIAM P DUNN2728971Jun 17, 2025Jun 17, 20251CA
SOUTHWICK & SON TRUCKING1709931Jul 11, 2024Jul 11, 20241CA
FLOYD LLC812521Feb 8, 2024Feb 8, 20241ID
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
CZ6890OKWILLIAM P DUNNJun 17, 2025Jun 17, 20251
CZ-6890OKSOUTHWICK & SON TRUCKINGJul 11, 2024Jul 11, 20241
NONECAFLOYD LLCFeb 8, 2024Feb 8, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC