Equipment unit · VIN-decoded · NHTSA vPIC

1DW1A5329FS527070

Not yet decoded
Carriers run under2
16 mo
Inspections2
all-time
OOS inspections0
of 2
First seenNov 5, 2023
TN
Last seenMar 1, 2025
MO
Inspected under 2 different carriers in 16 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
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1985 or 2015

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

North American serial sequence
527070

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 · Nov 5, 2023 – Mar 1, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 1, 2025MOIII · Driver-only0CIRCLE B MOTOR FREIGHT LLC 3808241850421/WI
Nov 5, 2023TNIII · Driver-only0ROYAL OAK HOLDINGS LLC 39447752353369/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CIRCLE B MOTOR FREIGHT LLC3808241Mar 1, 2025Mar 1, 20251MO
ROYAL OAK HOLDINGS LLC3944775Nov 5, 2023Nov 5, 20231TX
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.
850421WICIRCLE B MOTOR FREIGHT LLCMar 1, 2025Mar 1, 20251
2353369MEROYAL OAK HOLDINGS LLCNov 5, 2023Nov 5, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC