Equipment unit · VIN-decoded · NHTSA vPIC

2022 Stoughton Trailers

1DW1A5329NSA71007 · Trailer · TRAILER
Carriers run under4
27 mo
Inspections6
all-time
OOS inspections2
of 6
First seenOct 10, 2023
CO
Last seenJan 30, 2026
CA
Inspected under 4 different carriers in 27 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
1DW1A5329NSA71007
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2022
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 22, 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
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1992 or 2022

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

North American serial sequence
A71007

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
2022

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 · Oct 10, 2023 – Jan 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 30, 2026CAII · Walk-around1OOSGTI TRANSPORTATION INC 3928009630756T/TN
Jan 2, 2026NVIII · Driver-only4GTI TRANSPORTATION INC 3928009630756T/TN
Aug 21, 2025CAI · Full0SAFELINE TRANSPORT INC 2810873630756T/TN
Sep 26, 2024IAII · Walk-around1OOSAMERIFREIGHT INC 1450565858058ST/IL
Aug 2, 2024WIIII · Driver-only1AMERI FREIGHT SYSTEMS LLC 1251595858058ST/IL
Oct 10, 2023COI · Full4AMERI FREIGHT SYSTEMS LLC 1251595858058ST/IL
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GTI TRANSPORTATION INC3928009Jan 2, 2026Jan 30, 20262CA
SAFELINE TRANSPORT INC2810873Aug 21, 2025Aug 21, 20251CA
AMERIFREIGHT INC1450565Sep 26, 2024Sep 26, 20241IL
AMERI FREIGHT SYSTEMS LLC1251595Oct 10, 2023Aug 2, 20242IL
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.
630756TTNGTI TRANSPORTATION INCJan 2, 2026Jan 30, 20262
630756TTNSAFELINE TRANSPORT INCAug 21, 2025Aug 21, 20251
858058STILAMERIFREIGHT INCSep 26, 2024Sep 26, 20241
858058STILAMERI FREIGHT SYSTEMS LLCOct 10, 2023Aug 2, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026