Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X1PD880616 · Truck-Tractor · TRUCK
Carriers run under2
16 mo
Inspections3
all-time
OOS inspections0
of 3
First seenMar 18, 2025
AZ
Last seenJul 12, 2026
TX
Inspected under 2 different carriers in 16 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
1XPBD49X1PD880616
Make
Peterbilt
Model
579
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 30, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · Mar 18, 2025 – Jul 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 12, 2026TXII · Walk-around0—DUNCAN & SON LINES INC 44035AL25396/AZ
Sep 24, 2025CAI · Full0—DUNCAN & SON LINES INC 44035AL25396/AZ
Mar 18, 2025AZII · Walk-around6—DSL TANKER LLC 4125375AL25396/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DUNCAN & SON LINES INC44035Sep 24, 2025Jul 12, 20262AZ
DSL TANKER LLC4125375Mar 18, 2025Mar 18, 20251AZ
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.
AL25396AZ1DUNCAN & SON LINES INCSep 24, 2025 → Jul 12, 20262
AL25396AZ—DSL TANKER LLCMar 18, 2025 → Mar 18, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026