Equipment unit · VIN-decoded · NHTSA vPIC

2021 Cal-Tex Trailers

4C9FC5033MM546131 · TRAILER
Carriers run under2
30 mo
Inspections6
all-time
OOS inspections3
of 6
First seenAug 30, 2023
FL
Last seenFeb 18, 2026
FL
Inspected under 2 different carriers in 30 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
4C9FC5033MM546131
Make
Cal-Tex Trailers
Model
Not decoded
Model year
2021
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 24, 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
4C9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
FC503

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

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
546131

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
CAL-TEX TRAILERS

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 · Aug 30, 2023 – Feb 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 18, 2026FLI · Full4OOSALONSO'S EXPRESS TRANSPORT LLC 4128474KM749R/FL
May 16, 2024SCI · Full2OOSCHARLIE BROWN JR LOGISTICS INC 3598580QB22BK/FL
Feb 19, 2024SCIII · Driver-only1CHARLIE BROWN JR LOGISTICS INC 3598580QB2BK/FL
Oct 28, 2023NCI · Full0CHARLIE BROWN JR LOGISTICS INC 35985803153080/ME
Oct 3, 2023NCI · Full0CHARLIE BROWN JR LOGISTICS INC 35985803153080/ME
Aug 30, 2023FLII · Walk-around3OOSCHARLIE BROWN JR LOGISTICS INC 35985803153080/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALONSO'S EXPRESS TRANSPORT LLC4128474Feb 18, 2026Feb 18, 20261FL
CHARLIE BROWN JR LOGISTICS INC3598580Aug 30, 2023May 16, 20245FL
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.
KM749RFLALONSO'S EXPRESS TRANSPORT LLCFeb 18, 2026Feb 18, 20261
QB22BKFLCHARLIE BROWN JR LOGISTICS INCMay 16, 2024May 16, 20241
QB2BKFLCHARLIE BROWN JR LOGISTICS INCFeb 19, 2024Feb 19, 20241
3153080MECHARLIE BROWN JR LOGISTICS INCAug 30, 2023Oct 28, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026