Equipment unit · VIN-decoded · NHTSA vPIC

2023 Carmex

3A9DM483XPG019340 · TRAILER
Carriers run under4
17 mo
Inspections5
all-time
OOS inspections3
of 5
First seenDec 7, 2023
TX
Last seenMay 21, 2025
TX
Inspected under 4 different carriers in 17 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
3A9DM483XPG019340
Make
Carmex
Model
Not decoded
Model year
2023
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 30, 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
3A9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DM483

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1993 or 2023

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

North American serial sequence
019340

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.

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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
CARMEX

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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

  • 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 · Dec 7, 2023 – May 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
May 21, 2025TXI · Full9OOSLUIS ALBERTO MELENDEZ MACIEL 374782292UM9T/MX
Feb 26, 2025TXI · Full12OOSLUIS BASILIO MENDOZA GOLLAS 322005392UM9T/MX
Aug 20, 2024TXII · Walk-around3SERGIO TADEO RODRIGUEZ MARES 328061192UM9T/MX
Mar 27, 2024TXII · Walk-around0YOLANDA MARES LUCIO 371088192UM9T/MX
Dec 7, 2023TXI · Full5OOSSERGIO TADEO RODRIGUEZ MARES 328061192UM9T/MX
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
LUIS ALBERTO MELENDEZ MACIEL3747822May 21, 2025May 21, 20251TA
LUIS BASILIO MENDOZA GOLLAS3220053Feb 26, 2025Feb 26, 20251TA
SERGIO TADEO RODRIGUEZ MARES3280611Dec 7, 2023Aug 20, 20242TA
YOLANDA MARES LUCIO3710881Mar 27, 2024Mar 27, 20241TA
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.
92UM9TMXLUIS ALBERTO MELENDEZ MACIELMay 21, 2025May 21, 20251
92UM9TMXLUIS BASILIO MENDOZA GOLLASFeb 26, 2025Feb 26, 20251
92UM9TMXSERGIO TADEO RODRIGUEZ MARESDec 7, 2023Aug 20, 20242
92UM9TMXYOLANDA MARES LUCIOMar 27, 2024Mar 27, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 30, 2026