Equipment unit · VIN-decoded · NHTSA vPIC

1Z9TT2021HN374144

Not yet decoded
Carriers run under1
0 mo
Inspections1
all-time
OOS inspections0
of 1
First seenApr 17, 2025
TN
Last seenApr 17, 2025
TN
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
1Z9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
TT202

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1987 or 2017

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

North American serial sequence
374144

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 · Apr 17, 2025 – Apr 17, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 17, 2025TNI · Full0OHLINS USA 1897696DD30415/NC
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OHLINS USA1897696Apr 17, 2025Apr 17, 20251NC
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.
DD30415NCOHLINS USAApr 17, 2025Apr 17, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC