Equipment unit · VIN-decoded · NHTSA vPIC

2012 Monon

1NNZF4524CM056299 · Trailer · TRAILER
Carriers run under3
4 mo
Inspections3
all-time
OOS inspections0
of 3
First seenMay 16, 2025
CA
Last seenSep 29, 2025
CA
Inspected under 3 different carriers in 4 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

VIN
1NNZF4524CM056299
Make
Monon
Model
Monon
Model year
2012
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1NN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ZF452

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1982 or 2012

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

North American serial sequence
056299

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
MONON

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

Model
Monon

Prefix basis · 7 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.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2012

Observed directly for this VIN via NHTSA vPIC.

Observed make
MONON

Observed directly for this VIN via NHTSA vPIC.

Observed model
Monon

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

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 · May 16, 2025 – Sep 29, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 29, 2025CAIII · Driver-only0CH & D LOGISTICS INC 18265575334036/ME
Jul 8, 2025CAI · Full2TROPICAL TRUCKING LLC 39293915334036/ME
May 16, 2025CAI · Full0JR OSORIO LLC 39609735334036/ME
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CH & D LOGISTICS INC1826557Sep 29, 2025Sep 29, 20251CA
TROPICAL TRUCKING LLC3929391Jul 8, 2025Jul 8, 20251CA
JR OSORIO LLC3960973May 16, 2025May 16, 20251CA
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.
5334036MECH & D LOGISTICS INCSep 29, 2025Sep 29, 20251
5334036METROPICAL TRUCKING LLCJul 8, 2025Jul 8, 20251
5334036MEJR OSORIO LLCMay 16, 2025May 16, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026