Equipment unit · VIN-decoded · NHTSA vPIC

1S9LS4830D1260760

Not yet decoded
Carriers run under2
24 mo
Inspections2
all-time
OOS inspections0
of 2
First seenDec 1, 2023
ME
Last seenDec 17, 2025
ME
Inspected under 2 different carriers in 24 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
1S9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
LS483

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1983 or 2013

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

North American serial sequence
260760

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
STAIRS

Prefix basis · 34 decoded VINs at 100.0% prefix purity.

Model
Stairs

Prefix basis · 34 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 · Dec 1, 2023 – Dec 17, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 17, 2025MEII · Walk-around1MADDEN SUSTAINABLE FORESTRY INC 3029186C286651/ME
Dec 1, 2023MEIII · Driver-only0A W MADDEN INC 745771C286651/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MADDEN SUSTAINABLE FORESTRY INC3029186Dec 17, 2025Dec 17, 20251ME
A W MADDEN INC745771Dec 1, 2023Dec 1, 20231ME
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.
C286651MEMADDEN SUSTAINABLE FORESTRY INCDec 17, 2025Dec 17, 20251
C286651MEA W MADDEN INCDec 1, 2023Dec 1, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC