Equipment unit · VIN-decoded · NHTSA vPIC

4V4WC9EH3MN284550

Not yet decoded
Carriers run under2
8 mo
Inspections2
all-time
OOS inspections0
of 2
First seenSep 8, 2025
TN
Last seenMay 11, 2026
OH
Inspected under 2 different carriers in 8 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

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
4V4

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WC9EH

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
284550

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
VOLVO TRUCK

Prefix basis · 2,965 decoded VINs at 100.0% prefix purity.

Model
VNR

Prefix basis · 2,965 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.

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 8, 2025 – May 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 11, 2026OHIII · Driver-only0WRIGHT TRUCKING INC 1570002979012/IN
Sep 8, 2025TNII · Walk-around0TRANZSTAR INC 13834102979012/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WRIGHT TRUCKING INC157000May 11, 2026May 11, 20261KY
TRANZSTAR INC1383410Sep 8, 2025Sep 8, 20251IN
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.
2979012INWRIGHT TRUCKING INCMay 11, 2026May 11, 20261
2979012INTRANZSTAR INCSep 8, 2025Sep 8, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC