Equipment unit · VIN-decoded · NHTSA vPIC

1DW1A5320NBA85023

Not yet decoded
Carriers run under2
4 mo
Inspections2
all-time
OOS inspections2
of 2
First seenSep 22, 2025
CA
Last seenJan 10, 2026
IN
Inspected under 2 different carriers in 4 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
0 · valid

Deterministic · position 9; calculated value 0.

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
A85023

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 · Sep 22, 2025 – Jan 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 10, 2026INIII · Driver-only5OOSSONIC FREIGHT SYSTEM INC 3054958PA84518/IN
Sep 22, 2025CAI · Full3OOSTERRA FREIGHT LINES LLC 4152832PA84518/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SONIC FREIGHT SYSTEM INC3054958Jan 10, 2026Jan 10, 20261OH
TERRA FREIGHT LINES LLC4152832Sep 22, 2025Sep 22, 20251FL
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.
PA84518INSONIC FREIGHT SYSTEM INCJan 10, 2026Jan 10, 20261
PA84518INTERRA FREIGHT LINES LLCSep 22, 2025Sep 22, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC