Equipment unit · VIN-decoded · NHTSA vPIC

1DW1A532XLBA44217

Not yet decoded
Carriers run under2
11 mo
Inspections2
all-time
OOS inspections0
of 2
First seenApr 16, 2024
TN
Last seenMar 19, 2025
IL
Inspected under 2 different carriers in 11 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
1DW

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1A532

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1990 or 2020

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

North American serial sequence
A44217

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
STOUGHTON TRAILERS

Prefix basis · 12,945 decoded VINs at 100.0% prefix purity.

Model
Stoughton Trailers

Prefix basis · 12,945 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 · Apr 16, 2024 – Mar 19, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 19, 2025ILIII · Driver-only4BISHOP TRANSPORT & LOGISTICS LLC 3692469TN740/ID
Apr 16, 2024TNIII · Driver-only0ROAD DIAMOND INC 3412516TN740/ID
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BISHOP TRANSPORT & LOGISTICS LLC3692469Mar 19, 2025Mar 19, 20251IL
ROAD DIAMOND INC3412516Apr 16, 2024Apr 16, 20241FL
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.
TN740IDBISHOP TRANSPORT & LOGISTICS LLCMar 19, 2025Mar 19, 20251
TN740IDROAD DIAMOND INCApr 16, 2024Apr 16, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC