Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBDP9X9PD850507 · Truck-Tractor · TRUCK

Carriers run under2

16 mo

Inspections4

all-time

OOS inspections0

of 4

First seen08/15/2023

Last seen12/16/2024

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.

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN: 1XPBDP9X9PD850507
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: 07/12/2026

vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.

Inspection history

Every roadside inspection of this VIN, newest first · 08/15/2023 – 12/16/2024

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
12/16/2024	IA	I · Full	1	—	RELIANCE INTERMODAL INC 1850504	YP92799/CA
03/25/2024	CA	III · Driver-only	3	—	RELIANCE INTERMODAL INC 1850504	YP92799/CA
10/07/2023	CA	III · Driver-only	0	—	RELIANCE INTERMODAL INC 1850504	YP92799/CA
08/15/2023	CA	I · Full	0	—	ASL TRANS PRO INC 2352432	YP92799/CA

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
RELIANCE INTERMODAL INC	1850504	10/07/2023	12/16/2024	3	CA
ASL TRANS PRO INC	2352432	08/15/2023	08/15/2023	1	CA

Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.

Plate & unit-number history

The same truck under different plate registrations across carriers

Plate	State / prov.	Unit no.	Carrier	Date range	Insp.
YP92799	CA	—	RELIANCE INTERMODAL INC	10/07/2023 → 12/16/2024	3
YP92799	CA	—	ASL TRANS PRO INC	08/15/2023 → 08/15/2023	1

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/12/2026