Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBD49XXLD633220 · Truck-Tractor · TRUCK
Carriers run under2
29 mo
Inspections5
all-time
OOS inspections1
of 5
First seenJun 23, 2023
GA
Last seenNov 10, 2025
CA
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
1XPBD49XXLD633220
Make
Peterbilt
Model
579
Model year
2020
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.
02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 23, 2023 – Nov 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 10, 2025CAI · Full5OOSOLD SKOOL TRANS INC 4407350ZP64085/CA
Jul 23, 2025NMII · Walk-around0—OLD SKOOL TRANS INC 4407350ZP64085/CA
Jun 4, 2024IDIII · Driver-only1—HARPREET SINGH DAYAL 2404161XP51992/CA
Jan 4, 2024UTI · Full6—HARPREET SINGH DAYAL 2404161XP51992/CA
Jun 23, 2023GAIII · Driver-only3—HARPREET SINGH DAYAL 2404161XP51992/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OLD SKOOL TRANS INC4407350Jul 23, 2025Nov 10, 20252CA
HARPREET SINGH DAYAL2404161Jun 23, 2023Jun 4, 20243CA
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.
ZP64085CA—OLD SKOOL TRANS INCJul 23, 2025 → Nov 10, 20252
XP51992CA—HARPREET SINGH DAYALJun 23, 2023 → Jun 4, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026