Equipment unit · VIN-decoded · NHTSA vPIC

1REFA5206YC001551

Not yet decoded
Carriers run under1
30 mo
Inspections6
all-time
OOS inspections3
of 6
First seenAug 8, 2023
CA
Last seenFeb 12, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1REFA5206YC001551
Make
Not decoded
Model
Not decoded
Model year
Body class
Not decoded
Vehicle type
Not decoded
GVWR
Not decoded
Decoded at
Jun 22, 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
1RE

Deterministic · VIN positions 1–3.

Vehicle descriptor section
FA520

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2000 or 2030

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

North American serial sequence
001551

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
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed make
Not established

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
Not established

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 8, 2023 – Feb 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 12, 2026CAII · Walk-around2OOSSIERRA TRUCKING LLC 27706934WA3302/CA
Sep 3, 2025CAI · Full0SIERRA TRUCKING LLC 27706934WA3302/CA
Aug 30, 2025CAI · Full8OOSSIERRA TRUCKING LLC 27706934WA3302/CA
Jun 12, 2025CAII · Walk-around4OOSSIERRA TRUCKING LLC 27706934WA3302/CA
Jun 3, 2024CAI · Full0SIERRA TRUCKING LLC 27706934AW8553/CA
Aug 8, 2023CAI · Full0SIERRA TRUCKING LLC 27706934AW8553/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SIERRA TRUCKING LLC2770693Aug 8, 2023Feb 12, 20266CA
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.
4WA3302CASIERRA TRUCKING LLCJun 12, 2025Feb 12, 20264
4AW8553CASIERRA TRUCKING LLCAug 8, 2023Jun 3, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026