Equipment unit · VIN-decoded · NHTSA vPIC

2014 Wilson Trailer Co.

4WW5532A0E6621840 · TRAILER
Carriers run under2
29 mo
Inspections6
all-time
OOS inspections0
of 6
First seenAug 28, 2023
AK
Last seenJan 7, 2026
AK
Inspected under 2 different carriers in 29 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
4WW5532A0E6621840
Make
Wilson Trailer Co.
Model
Not decoded
Model year
2014
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Sep 4, 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
4WW

Deterministic · VIN positions 1–3.

Vehicle descriptor section
5532A

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1984 or 2014

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

North American serial sequence
621840

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2014

Observed directly for this VIN via NHTSA vPIC.

Observed make
WILSON TRAILER CO.

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 28, 2023 – Jan 7, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 7, 2026AKIII · Driver-only0ROCKSBURY TRUCKING LLC 28181122600SV/AK
Nov 18, 2024AKIII · Driver-only0ROCKSBURY TRUCKING LLC 28181122600SV/AK
Sep 28, 2024AKIII · Driver-only0ROCK BEACON LLC 34183872430STM/MN
Apr 23, 2024AKII · Walk-around0ROCK BEACON LLC 3418387243OSTM/MN
Jan 7, 2024AKIII · Driver-only0ROCKSBURY TRUCKING LLC 28181122600SV/AK
Aug 28, 2023AKII · Walk-around0ROCK BEACON LLC 3418387243OSTM/MN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROCKSBURY TRUCKING LLC2818112Jan 7, 2024Jan 7, 20263MN
ROCK BEACON LLC3418387Aug 28, 2023Sep 28, 20243MN
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.
2600SVAKROCKSBURY TRUCKING LLCJan 7, 2024Jan 7, 20263
2430STMMNROCK BEACON LLCSep 28, 2024Sep 28, 20241
243OSTMMNROCK BEACON LLCAug 28, 2023Apr 23, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 4, 2026