Equipment unit · VIN-decoded · NHTSA vPIC

2015 Stoughton Trailers

1DW1A5327FB514527 · Trailer · TRAILER
Carriers run under4
36 mo
Inspections8
all-time
OOS inspections4
of 8
First seenJun 12, 2023
CA
Last seenJun 23, 2026
TX
Inspected under 4 different carriers in 36 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
1DW1A5327FB514527
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2015
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
7 · valid

Deterministic · position 9; calculated value 7.

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
514527

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
2015

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 · Jun 12, 2023 – Jun 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 23, 2026TXII · Walk-around1OOSBLUE SKY HAULERS LLC 4358022247C431/TX
Jul 17, 2025COII · Walk-around0ALP TRANSPORTATION LLC 3487978247C431/TX
Jun 4, 2025TXII · Walk-around0ALP TRANSPORTATION LLC 3487978247C431/TX
Nov 4, 2024MDII · Walk-around1ROCKY ON TIME TRANSPORT LLC 3787216247C431/TX
Sep 17, 2024OHII · Walk-around3ROCKY ON TIME TRANSPORT LLC 3787216197C629/TX
May 29, 2024MSI · Full4OOSROCKY ON TIME TRANSPORT LLC 3787216197C629/TX
Aug 24, 2023WAI · Full5OOSSWIFT FALCON TRANSPORTATION COMPANY LLC 3548533197C629/TX
Jun 12, 2023CAI · Full4OOSSWIFT FALCON TRANSPORTATION COMPANY LLC 3548533197C629/TX
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BLUE SKY HAULERS LLC4358022Jun 23, 2026Jun 23, 20261TX
ALP TRANSPORTATION LLC3487978Jun 4, 2025Jul 17, 20252TX
ROCKY ON TIME TRANSPORT LLC3787216May 29, 2024Nov 4, 20243TX
SWIFT FALCON TRANSPORTATION COMPANY LLC3548533Jun 12, 2023Aug 24, 20232TX
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.
247C431TX2BLUE SKY HAULERS LLCJun 23, 2026Jun 23, 20261
247C431TXALP TRANSPORTATION LLCJun 4, 2025Jul 17, 20252
247C431TXROCKY ON TIME TRANSPORT LLCNov 4, 2024Nov 4, 20241
197C629TXROCKY ON TIME TRANSPORT LLCMay 29, 2024Sep 17, 20242
197C629TXSWIFT FALCON TRANSPORTATION COMPANY LLCJun 12, 2023Aug 24, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026