Equipment unit · VIN-decoded · NHTSA vPIC

1999 Beall Trailers

1BN2T4528XP028639 · Trailer · TRAILER
Carriers run under2
13 mo
Inspections5
all-time
OOS inspections1
of 5
First seenSep 28, 2023
CA
Last seenOct 17, 2024
CA
Inspected under 2 different carriers in 13 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
1BN2T4528XP028639
Make
Beall Trailers
Model
Beall Trailers
Model year
1999
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 28, 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
1BN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
2T452

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1999 or 2029

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

North American serial sequence
028639

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
BEALL TRAILERS

Prefix basis · 21 decoded VINs at 100.0% prefix purity.

Model
Beall Trailers

Prefix basis · 21 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
1999

Observed directly for this VIN via NHTSA vPIC.

Observed make
BEALL TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Beall Trailers

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 · Sep 28, 2023 – Oct 17, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 17, 2024CAI · Full0VACA VALLEY TRANSPORT INC 32621694UK1235/CA
Feb 10, 2024CAII · Walk-around4OOSVACA VALLEY TRANSPORT INC 32621694UK1235/CA
Dec 18, 2023CAIII · Driver-only0MOUNTAIN VALLEY PETROLEUM INC 7834944UK1235/CA
Dec 16, 2023CAIII · Driver-only0MOUNTAIN VALLEY PETROLEUM INC 7834944UK1235/CA
Sep 28, 2023CAI · Full0VACA VALLEY TRANSPORT INC 32621694UK1235/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
VACA VALLEY TRANSPORT INC3262169Sep 28, 2023Oct 17, 20243CA
MOUNTAIN VALLEY PETROLEUM INC783494Dec 16, 2023Dec 18, 20232CA
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.
4UK1235CAVACA VALLEY TRANSPORT INCSep 28, 2023Oct 17, 20243
4UK1235CAMOUNTAIN VALLEY PETROLEUM INCDec 16, 2023Dec 18, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026