Equipment unit · VIN-decoded · NHTSA vPIC

2020 Wilson

1W16532A4L5558532 · TRAILER
Carriers run under3
23 mo
Inspections3
all-time
OOS inspections0
of 3
First seenAug 9, 2023
IA
Last seenJul 1, 2025
IL
Inspected under 3 different carriers in 23 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

VIN
1W16532A4L5558532
Make
Wilson
Model
Not decoded
Model year
2020
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

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

World manufacturer identifier
1W1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
6532A

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
558532

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
WILSON

Prefix basis · 258 decoded VINs at 100.0% prefix purity.

Model
Wilson

Prefix basis · 258 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.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
WILSON

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

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 · Aug 9, 2023 – Jul 1, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 1, 2025ILIII · Driver-only0MARTINEZ TRUCKING LLC 2586451T788805/TN
Jun 18, 2024ARIII · Driver-only1A L A TRANSPORTATION INC 319623FB7198/IA
Aug 9, 2023IAIII · Driver-only2DAN O'BRIEN TRUCKING INC 536366FB7198/IA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MARTINEZ TRUCKING LLC2586451Jul 1, 2025Jul 1, 20251TX
A L A TRANSPORTATION INC319623Jun 18, 2024Jun 18, 20241KS
DAN O'BRIEN TRUCKING INC536366Aug 9, 2023Aug 9, 20231IA
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.
T788805TNMARTINEZ TRUCKING LLCJul 1, 2025Jul 1, 20251
FB7198IAA L A TRANSPORTATION INCJun 18, 2024Jun 18, 20241
FB7198IADAN O'BRIEN TRUCKING INCAug 9, 2023Aug 9, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026