Equipment unit · VIN-decoded · NHTSA vPIC

1XPHD49X7AD101947

Not yet decoded
Carriers run under2
32 mo
Inspections2
all-time
OOS inspections2
of 2
First seenJun 28, 2023
AR
Last seenFeb 25, 2026
AR
Inspected under 2 different carriers in 32 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
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
HD49X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1980 or 2010

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

North American serial sequence
101947

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
PETERBILT

Prefix basis · 3,252 decoded VINs at 100.0% prefix purity.

Model
386

Prefix basis · 3,252 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 · Jun 28, 2023 – Feb 25, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 25, 2026ARIII · Driver-only1OOSMICHAEL KNOWLTON 1767098F327034/AR
Jun 28, 2023ARII · Walk-around3OOSSUPERIOR HAULING & FAST TRANSIT INC 251582K805472/AR
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MICHAEL KNOWLTON1767098Feb 25, 2026Feb 25, 20261AR
SUPERIOR HAULING & FAST TRANSIT INC251582Jun 28, 2023Jun 28, 20231MO
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.
F327034ARMICHAEL KNOWLTONFeb 25, 2026Feb 25, 20261
K805472ARSUPERIOR HAULING & FAST TRANSIT INCJun 28, 2023Jun 28, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC