Equipment unit · VIN-decoded · NHTSA vPIC

3R9P12392MM001618

Not yet decoded
Carriers run under2
11 mo
Inspections2
all-time
OOS inspections2
of 2
First seenFeb 6, 2025
US
Last seenJan 21, 2026
TX
Inspected under 2 different carriers in 11 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
3R9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
P1239

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

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
001618

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 6, 2025 – Jan 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 21, 2026TXII · Walk-around8OOSLUIS ALBERTO MELENDEZ MACIEL 374782205UV4V/MX
Feb 6, 2025USI · Full9OOSAUTOTRANSPORTES ONPETROL DE MEXICO SA DE CV 403461605UV4V/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
LUIS ALBERTO MELENDEZ MACIEL3747822Jan 21, 2026Jan 21, 20261TA
AUTOTRANSPORTES ONPETROL DE MEXICO SA DE CV4034616Feb 6, 2025Feb 6, 20251NL
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.
05UV4VMXLUIS ALBERTO MELENDEZ MACIELJan 21, 2026Jan 21, 20261
05UV4VMXAUTOTRANSPORTES ONPETROL DE MEXICO SA DE CVFeb 6, 2025Feb 6, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC