Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X2PD861296 · Truck-Tractor · TRUCK
Carriers run under2
23 mo
Inspections5
all-time
OOS inspections2
of 5
First seen03/23/2024
TN
Last seen02/20/2026
TN
Inspected under 2 different carriers in 23 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
1XPBD49X2PD861296
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
06/28/2026
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 · 03/23/2024 – 02/20/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
02/20/2026TNIII · Driver-only0—ROCK BOTTOM EXPRESS LLC 247737752282PZ/VA
02/18/2026NCII · Walk-around2OOSROCK BOTTOM EXPRESS LLC 247737752282PZ/VA
08/25/2025TNIII · Driver-only0—ROCK BOTTOM EXPRESS LLC 247737752282PZ/VA
04/08/2025GAIII · Driver-only1—ROCK BOTTOM EXPRESS LLC 247737752282PZ/VA
03/23/2024TNI · Full1OOSWILLIAM E SMITH TRUCKING INC 148573VT6839/NC
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROCK BOTTOM EXPRESS LLC247737704/08/202502/20/20264VA
WILLIAM E SMITH TRUCKING INC14857303/23/202403/23/20241NC
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.
52282PZVA—ROCK BOTTOM EXPRESS LLC04/08/2025 → 02/20/20264
VT6839NC—WILLIAM E SMITH TRUCKING INC03/23/2024 → 03/23/20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/28/2026