Equipment unit · VIN-decoded · NHTSA vPIC

1M1AN4GY4LM013873

Not yet decoded
Carriers run under2
6 mo
Inspections2
all-time
OOS inspections0
of 2
First seenAug 2, 2023
WY
Last seenFeb 7, 2024
MT
Inspected under 2 different carriers in 6 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
1M1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AN4GY

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1990 or 2020

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

North American serial sequence
013873

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
MACK

Prefix basis · 7,931 decoded VINs at 100.0% prefix purity.

Model
Anthem

Prefix basis · 7,931 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 · Aug 2, 2023 – Feb 7, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 7, 2024MTIII · Driver-only0HEADWATER TRANSPORTATION INC 31363410AP698/AB
Aug 2, 2023WYIII · Driver-only3STEELHORSE FREIGHT SERVICES INC 1293765U88972/AB
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HEADWATER TRANSPORTATION INC3136341Feb 7, 2024Feb 7, 20241AB
STEELHORSE FREIGHT SERVICES INC1293765Aug 2, 2023Aug 2, 20231AB
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.
0AP698ABHEADWATER TRANSPORTATION INCFeb 7, 2024Feb 7, 20241
U88972ABSTEELHORSE FREIGHT SERVICES INCAug 2, 2023Aug 2, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC