Equipment unit · VIN-decoded · NHTSA vPIC

2019 Stoughton Trailers

1DW1A532XKSA17579 · Trailer · TRAILER
Carriers run under4
28 mo
Inspections7
all-time
OOS inspections1
of 7
First seenDec 4, 2023
NC
Last seenApr 10, 2026
AR
Inspected under 4 different carriers in 28 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
1DW1A532XKSA17579
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2019
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 19, 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
1989 or 2019

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

North American serial sequence
A17579

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
2019

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 · Dec 4, 2023 – Apr 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 10, 2026ARIII · Driver-only3BIG CITY TRUCKING INC 3660759AX3446/OK
Sep 30, 2025OHIII · Driver-only0SAL & SONS TRUCKING LLC 4137946AX3446/OK
Nov 23, 2024NMII · Walk-around1OOSMLC CARRIER INC 2728272AX3446/OK
Nov 22, 2024AZI · Full1MLC CARRIER INC 2728272AX3446/OK
Oct 29, 2024NMIII · Driver-only0MLC CARRIER INC 2728272AX3446/OK
Aug 21, 2024TXII · Walk-around1MLC CARRIER INC 2728272AX3446/OK
Dec 4, 2023NCIII · Driver-only1FREIGHT AMERICA INC 2842691AX3446/OK
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BIG CITY TRUCKING INC3660759Apr 10, 2026Apr 10, 20261IN
SAL & SONS TRUCKING LLC4137946Sep 30, 2025Sep 30, 20251IL
MLC CARRIER INC2728272Aug 21, 2024Nov 23, 20244IL
FREIGHT AMERICA INC2842691Dec 4, 2023Dec 4, 20231IL
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.
AX3446OKBIG CITY TRUCKING INCApr 10, 2026Apr 10, 20261
AX3446OKSAL & SONS TRUCKING LLCSep 30, 2025Sep 30, 20251
AX3446OKMLC CARRIER INCAug 21, 2024Nov 23, 20244
AX3446OKFREIGHT AMERICA INCDec 4, 2023Dec 4, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026