Equipment unit · VIN-decoded · NHTSA vPIC

2003 Advanced Trailer Manufacturing

1SPPF503X31003085 · TRAILER
Carriers run under2
34 mo
Inspections9
all-time
OOS inspections5
of 9
First seenJul 28, 2023
MO
Last seenMay 29, 2026
TN
Inspected under 2 different carriers in 34 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
1SPPF503X31003085
Make
Advanced Trailer Manufacturing
Model
Not decoded
Model year
2003
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 14, 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
1SP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
PF503

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
2003 or 2033

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

North American serial sequence
003085

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2003

Observed directly for this VIN via NHTSA vPIC.

Observed make
ADVANCED TRAILER MANUFACTURING

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 28, 2023 – May 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 29, 2026TNI · Full0JIM WILLIAMS 62824106M6NG/MO
Jan 21, 2026KYIII · Driver-only4BTR INVESTMENTS LLC 402905206M6NG/MO
Sep 25, 2025TNI · Full7OOSBTR INVESTMENTS LLC 402905289M6CP/MO
Aug 8, 2025TNI · Full3OOSBTR INVESTMENTS LLC 402905289M6CP/MO
Mar 7, 2025ALII · Walk-around4BTR INVESTMENTS LLC 402905211M9BV/MO
May 7, 2024TNI · Full5OOSBTR INVESTMENTS LLC 40290528926CP/MO
May 6, 2024KYI · Full9OOSBTR INVESTMENTS LLC 40290528926CP/MO
Aug 17, 2023ALI · Full7BTR INVESTMENTS LLC 402905254L2YU/MO
Jul 28, 2023MOIII · Driver-only1OOSBTR INVESTMENTS LLC 402905254L2YU/MO
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JIM WILLIAMS628241May 29, 2026May 29, 20261MO
BTR INVESTMENTS LLC4029052Jul 28, 2023Jan 21, 20268MO
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.
06M6NGMOJIM WILLIAMSMay 29, 2026May 29, 20261
06M6NGMOBTR INVESTMENTS LLCJan 21, 2026Jan 21, 20261
89M6CPMOBTR INVESTMENTS LLCAug 8, 2025Sep 25, 20252
11M9BVMOBTR INVESTMENTS LLCMar 7, 2025Mar 7, 20251
8926CPMOBTR INVESTMENTS LLCMay 6, 2024May 7, 20242
54L2YUMOBTR INVESTMENTS LLCJul 28, 2023Aug 17, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 14, 2026