Equipment unit · VIN-decoded · NHTSA vPIC

1UNST4221BL086375

Not yet decoded
Carriers run under1
16 mo
Inspections2
all-time
OOS inspections2
of 2
First seenNov 16, 2024
NM
Last seenMar 2, 2026
NM
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1UN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ST422

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1981 or 2011

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

North American serial sequence
086375

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.

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 · Nov 16, 2024 – Mar 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 2, 2026NMIII · Driver-only4OOSB3 ENERGY SERVICES I CORPORATION LLC 38776215973FTK/NM
Nov 16, 2024NMII · Walk-around6OOSB3 ENERGY SERVICES I CORPORATION LLC 38776215937FTK/NM
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
B3 ENERGY SERVICES I CORPORATION LLC3877621Nov 16, 2024Mar 2, 20262NM
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.
5973FTKNMB3 ENERGY SERVICES I CORPORATION LLCMar 2, 2026Mar 2, 20261
5937FTKNMB3 ENERGY SERVICES I CORPORATION LLCNov 16, 2024Nov 16, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC