Equipment unit · VIN-decoded · NHTSA vPIC

2022 Peterbilt 579

1XPBD49XXND793570 · Truck-Tractor · TRUCK
Carriers run under2
24 mo
Inspections5
all-time
OOS inspections1
of 5
First seenOct 25, 2023
UT
Last seenOct 18, 2025
NM
Inspected under 2 different carriers in 24 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
1XPBD49XXND793570
Make
Peterbilt
Model
579
Model year
2022
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 29, 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
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BD49X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1992 or 2022

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

North American serial sequence
793570

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 · 26,166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 26,166 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
2022

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
579

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

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 · Oct 25, 2023 – Oct 18, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 18, 2025NMII · Walk-around0ASG TRANSPORT LLC 3489087AN00644/AZ
Aug 20, 2025ORI · Full1ASG TRANSPORT LLC 3489087AN00644/AZ
Aug 6, 2025CAII · Walk-around0ASG TRANSPORT LLC 3489087AN00644/AZ
Jul 29, 2025GAIII · Driver-only7OOSASG TRANSPORT LLC 3489087AN0064/AZ
Oct 25, 2023UTIII · Driver-only2STEVENS TRANSPORT INC 79466R542935/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ASG TRANSPORT LLC3489087Jul 29, 2025Oct 18, 20254AZ
STEVENS TRANSPORT INC79466Oct 25, 2023Oct 25, 20231TX
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.
AN00644AZASG TRANSPORT LLCAug 6, 2025Oct 18, 20253
AN0064AZASG TRANSPORT LLCJul 29, 2025Jul 29, 20251
R542935TXSTEVENS TRANSPORT INCOct 25, 2023Oct 25, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026