Equipment unit · VIN-decoded · NHTSA vPIC

1S9SS4439ML476984

Not yet decoded
Carriers run under1
7 mo
Inspections2
all-time
OOS inspections0
of 2
First seenNov 5, 2024
ND
Last seenJun 30, 2025
ND
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
1S9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
SS443

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1991 or 2021

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

North American serial sequence
476984

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
SMITHCO MANUFACTURING

Prefix basis · 21 decoded VINs at 100.0% prefix purity.

Model
SMITHCO MANUFACTURING

Prefix basis · 21 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, 2024 – Jun 30, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 30, 2025NDIII · Driver-only0COLMAN TRANSPORTATION INC 18165631955OP/SD
Nov 5, 2024NDII · Walk-around0COLMAN TRANSPORTATION INC 181656319550P/SD
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
COLMAN TRANSPORTATION INC1816563Nov 5, 2024Jun 30, 20252SD
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.
1955OPSDCOLMAN TRANSPORTATION INCJun 30, 2025Jun 30, 20251
19550PSDCOLMAN TRANSPORTATION INCNov 5, 2024Nov 5, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC