Equipment unit · VIN-decoded · NHTSA vPIC

2021 Carmex

3A9DM4832MG019103 · TRAILER
Carriers run under4
10 mo
Inspections10
all-time
OOS inspections2
of 10
First seenJul 12, 2023
TX
Last seenMay 21, 2024
TX
Inspected under 4 different carriers in 10 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
3A9DM4832MG019103
Make
Carmex
Model
Not decoded
Model year
2021
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 19, 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
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
019103

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
2021

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 · Jul 12, 2023 – May 21, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
May 21, 2024TXI · Full4JESSICA LIZETH ACOSTA SANCHEZ 374789678UD6K/MX
May 9, 2024TXI · Full3JESSICA LIZETH ACOSTA SANCHEZ 374789678UD6K/MX
May 3, 2024TXI · Full0JESSICA LIZETH ACOSTA SANCHEZ 374789678UD6K/MX
Apr 30, 2024USI · Full2LUIS ALBERTO MELENDEZ MACIEL 374782278UD6K/MX
Dec 26, 2023USI · Full3LUIS ALBERTO MELENDEZ MACIEL 374782278UD6K/TA
Dec 12, 2023TXI · Full2OOSJESSICA LIZETH ACOSTA SANCHEZ 374789678UD6K/MX
Dec 1, 2023TXI · Full4JESSICA LIZETH ACOSTA SANCHEZ 374789678UD6K/MX
Nov 13, 2023TXII · Walk-around2JESSICA LIZETH ACOSTA SANCHEZ 374789678UD6K/MX
Nov 1, 2023TXII · Walk-around2ROBERTO CARLOS ALVAREZ MARTINEZ 328259478UD6K/MX
Jul 12, 2023TXI · Full8OOSALFREDO GARCIA GARCIA 354008678UD6K/MX
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JESSICA LIZETH ACOSTA SANCHEZ3747896Nov 13, 2023May 21, 20246TA
LUIS ALBERTO MELENDEZ MACIEL3747822Dec 26, 2023Apr 30, 20242TA
ROBERTO CARLOS ALVAREZ MARTINEZ3282594Nov 1, 2023Nov 1, 20231TA
ALFREDO GARCIA GARCIA3540086Jul 12, 2023Jul 12, 20231NL
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.
78UD6KMXJESSICA LIZETH ACOSTA SANCHEZNov 13, 2023May 21, 20246
78UD6KMXLUIS ALBERTO MELENDEZ MACIELApr 30, 2024Apr 30, 20241
78UD6KTALUIS ALBERTO MELENDEZ MACIELDec 26, 2023Dec 26, 20231
78UD6KMXROBERTO CARLOS ALVAREZ MARTINEZNov 1, 2023Nov 1, 20231
78UD6KMXALFREDO GARCIA GARCIAJul 12, 2023Jul 12, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026