Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 389

1NPXL40X4LD667556 · Truck · INCOMPLETE VEHICLE
Carriers run under2
29 mo
Inspections9
all-time
OOS inspections4
of 9
First seenNov 27, 2023
CT
Last seenApr 20, 2026
CT
Inspected under 2 different carriers in 29 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

VIN
1NPXL40X4LD667556
Make
Peterbilt
Model
389
Model year
2020
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 20, 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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
XL40X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1990 or 2020

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

North American serial sequence
667556

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 · 530 decoded VINs at 100.0% prefix purity.

Model
389

Prefix basis · 530 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.

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
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
389

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

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 · Nov 27, 2023 – Apr 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 20, 2026CTII · Walk-around4OOSTONY'S TRUCKING CO INC 640462BR30756/CT
May 6, 2025CTII · Walk-around5OOSTONY'S TRUCKING CO INC 640462BR30756/CT
Apr 25, 2025CTII · Walk-around2OOSTONY'S TRUCKING CO INC 640462BR30756/CT
Mar 24, 2025CTII · Walk-around2TONY'S TRUCKING CO INC 640462BR30756/CT
Jan 8, 2025CTII · Walk-around3TONY'S TRUCKING CO INC 640462BR30756/CT
Dec 9, 2024CTIII · Driver-only1TONY'S TRUCKING CO INC 640462BR30756/CT
Mar 26, 2024CTII · Walk-around3OOSTONY'S TRUCKING CO INC 640462AE31228/CT
Feb 5, 2024CTIII · Driver-only2M&W CONSTRUCTION SERVICES LLC 2197395AE31228/CT
Nov 27, 2023CTIII · Driver-only0M&W CONSTRUCTION SERVICES LLC 2197395AE31228/CT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TONY'S TRUCKING CO INC640462Mar 26, 2024Apr 20, 20267CT
M&W CONSTRUCTION SERVICES LLC2197395Nov 27, 2023Feb 5, 20242CT
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.
BR30756CTTONY'S TRUCKING CO INCDec 9, 2024Apr 20, 20266
AE31228CTTONY'S TRUCKING CO INCMar 26, 2024Mar 26, 20241
AE31228CTM&W CONSTRUCTION SERVICES LLCNov 27, 2023Feb 5, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026