Equipment unit · VIN-decoded · NHTSA vPIC

2012 Stoughton Trailers

1DW1A5325CB326746 · Trailer · TRAILER
Carriers run under3
11 mo
Inspections10
all-time
OOS inspections2
of 10
First seenApr 3, 2025
AZ
Last seenMar 23, 2026
CA
Inspected under 3 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

VIN
1DW1A5325CB326746
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2012
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1982 or 2012

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

North American serial sequence
326746

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.

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
2012

Observed directly for this VIN via NHTSA vPIC.

Observed make
STOUGHTON TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Stoughton Trailers

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

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 · Apr 3, 2025 – Mar 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 23, 2026CAI · Full1OOSMMH EXPRESS INC 34169174WE4358/CA
Jan 14, 2026FLI · Full1US BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
Jan 4, 2026CAIII · Driver-only1US BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
Dec 19, 2025NMII · Walk-around0US GREEN LAND TRANSPORTATION LLC 42822504WE4358/CA
Nov 6, 2025NMIII · Driver-only0US BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
Sep 20, 2025NMII · Walk-around0US BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
Sep 16, 2025NMIII · Driver-only1US BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
Aug 22, 2025CAII · Walk-around1US BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
Aug 17, 2025NMI · Full1OOSUS BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
Apr 3, 2025AZII · Walk-around1US BLUE SKY TRANSPORTATION LLC 41442754WE4358/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MMH EXPRESS INC3416917Mar 23, 2026Mar 23, 20261IL
US BLUE SKY TRANSPORTATION LLC4144275Apr 3, 2025Jan 14, 20268TX
US GREEN LAND TRANSPORTATION LLC4282250Dec 19, 2025Dec 19, 20251TX
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.
4WE4358CAMMH EXPRESS INCMar 23, 2026Mar 23, 20261
4WE4358CAUS BLUE SKY TRANSPORTATION LLCApr 3, 2025Jan 14, 20268
4WE4358CAUS GREEN LAND TRANSPORTATION LLCDec 19, 2025Dec 19, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026