Equipment unit · VIN-decoded · NHTSA vPIC

54DC4W1B6JS800923

Not yet decoded
Carriers run under3
18 mo
Inspections3
all-time
OOS inspections0
of 3
First seenApr 8, 2024
NH
Last seenOct 23, 2025
KY
Inspected under 3 different carriers in 18 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
54D

Deterministic · VIN positions 1–3.

Vehicle descriptor section
C4W1B

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1988 or 2018

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

North American serial sequence
800923

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.

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 · Apr 8, 2024 – Oct 23, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 23, 2025KYIII · Driver-only2NATIONAL FLEET MANAGEMENT INC 2941824VN6592/NC
Jun 18, 2025MDII · Walk-around1SOUTHEASTERN TRANSPORTATION LLC 4124177G4005M/FL
Apr 8, 2024NHIII · Driver-only23 STEP SPORTS LLC 3384750V78635/MA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NATIONAL FLEET MANAGEMENT INC2941824Oct 23, 2025Oct 23, 20251NC
SOUTHEASTERN TRANSPORTATION LLC4124177Jun 18, 2025Jun 18, 20251FL
3 STEP SPORTS LLC3384750Apr 8, 2024Apr 8, 20241MA
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.
VN6592NCNATIONAL FLEET MANAGEMENT INCOct 23, 2025Oct 23, 20251
G4005MFLSOUTHEASTERN TRANSPORTATION LLCJun 18, 2025Jun 18, 20251
V78635MA3 STEP SPORTS LLCApr 8, 2024Apr 8, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC