Equipment unit · VIN-decoded · NHTSA vPIC

2001 Stoughton Trailers

1DW1C48251E479958 · Trailer · TRAILER
Carriers run under3
13 mo
Inspections4
all-time
OOS inspections4
of 4
First seenJul 5, 2025
SC
Last seenAug 3, 2026
SC
Inspected under 3 different carriers in 13 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
1DW1C48251E479958
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2001
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 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
1C482

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
2001 or 2031

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

North American serial sequence
479958

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 · 22 decoded VINs at 100.0% prefix purity.

Model
Stoughton Trailers

Prefix basis · 22 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
2001

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 · Jul 5, 2025 – Aug 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 3, 2026SCIII · Driver-only3OOSVZ TRUCKING LLC 4544075DD3971A/NC
Dec 10, 2025SCII · Walk-around9OOSCHRISTOPHER B RILEY 925426694415T/TN
Oct 9, 2025SCI · Full28OOSGUILLEM TRANSPORTATION & SERVICES LLC 4110588694415T/TN
Jul 5, 2025SCII · Walk-around10OOSGUILLEM TRANSPORTATION & SERVICES LLC 4110588694415T/TN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
VZ TRUCKING LLC4544075Aug 3, 2026Aug 3, 20261NC
CHRISTOPHER B RILEY925426Dec 10, 2025Dec 10, 20251SC
GUILLEM TRANSPORTATION & SERVICES LLC4110588Jul 5, 2025Oct 9, 20252SC
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.
DD3971ANC2VZ TRUCKING LLCAug 3, 2026Aug 3, 20261
694415TTNCHRISTOPHER B RILEYDec 10, 2025Dec 10, 20251
694415TTNGUILLEM TRANSPORTATION & SERVICES LLCJul 5, 2025Oct 9, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026