Equipment unit · VIN-decoded · NHTSA vPIC

1M2AA18Y44N156919

Not yet decoded
Carriers run under2
5 mo
Inspections2
all-time
OOS inspections2
of 2
First seenJul 5, 2023
TX
Last seenDec 28, 2023
TX
Inspected under 2 different carriers in 5 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
1M2

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AA18Y

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
2004 or 2034

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

North American serial sequence
156919

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 · 156 decoded VINs at 100.0% prefix purity.

Model
CH

Prefix basis · 156 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 · Jul 5, 2023 – Dec 28, 2023

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 28, 2023TXII · Walk-around20OOSGUZ TRUCKING LLC 41418801N16811/TX
Jul 5, 2023TXII · Walk-around18OOSCESAR I TOVAR BRIONES 30478671N16811/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GUZ TRUCKING LLC4141880Dec 28, 2023Dec 28, 20231TX
CESAR I TOVAR BRIONES3047867Jul 5, 2023Jul 5, 20231TX
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.
1N16811TXGUZ TRUCKING LLCDec 28, 2023Dec 28, 20231
1N16811TXCESAR I TOVAR BRIONESJul 5, 2023Jul 5, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC