Equipment unit · VIN-decoded · NHTSA vPIC

2015 Stoughton Trailers

1DW1A532XFS596804 · Trailer · TRAILER
Carriers run under4
23 mo
Inspections4
all-time
OOS inspections2
of 4
First seenFeb 6, 2024
OK
Last seenJan 6, 2026
CA
Inspected under 4 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
1DW1A532XFS596804
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2015
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 5, 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
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
1985 or 2015

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

North American serial sequence
596804

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 · Feb 6, 2024 – Jan 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 6, 2026CAI · Full2OOSZW MEGA TRUCKING INC 4222286683947/WI
Oct 2, 2024CAII · Walk-around0—HSP TRUCKING INC 3186894683947/WI
Feb 16, 2024KYII · Walk-around1—JRY EXPRESS LLC 3683329683947/WI
Feb 6, 2024OKI · Full5OOSTNT TRANSFER LLC 3954280683947/WI
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ZW MEGA TRUCKING INC4222286Jan 6, 2026Jan 6, 20261CA
HSP TRUCKING INC3186894Oct 2, 2024Oct 2, 20241CA
JRY EXPRESS LLC3683329Feb 16, 2024Feb 16, 20241FL
TNT TRANSFER LLC3954280Feb 6, 2024Feb 6, 20241OH
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.
683947WI—ZW MEGA TRUCKING INCJan 6, 2026 → Jan 6, 20261
683947WI—HSP TRUCKING INCOct 2, 2024 → Oct 2, 20241
683947WI—JRY EXPRESS LLCFeb 16, 2024 → Feb 16, 20241
683947WI—TNT TRANSFER LLCFeb 6, 2024 → Feb 6, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026