Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X6MD755686 · Truck-Tractor · TRUCK
Carriers run under2
18 mo
Inspections3
all-time
OOS inspections1
of 3
First seen01/26/2024
US
Last seen07/21/2025
CA
Inspected under 2 different carriers in 18 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
1XPBD49X6MD755686
Make
Peterbilt
Model
579
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
07/30/2026
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 · 01/26/2024 – 07/21/2025

DateStateLevelViol.OOSCarrier (DOT)Plate
07/21/2025CAV · Vehicle-only2—KANGAROO FREIGHT LINES INC 3089897ZP46128/CA
10/04/2024AZI · Full6OOSKANGAROO FREIGHT LINES INC 3089897BY1116UT/SC
01/26/2024USI · Full0—BARSTOW TRANSPORTATION LLC 968462XA279K/FL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KANGAROO FREIGHT LINES INC308989710/04/202407/21/20252CA
BARSTOW TRANSPORTATION LLC96846201/26/202401/26/20241FL
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.
ZP46128CA—KANGAROO FREIGHT LINES INC07/21/2025 → 07/21/20251
BY1116UTSC—KANGAROO FREIGHT LINES INC10/04/2024 → 10/04/20241
XA279KFL—BARSTOW TRANSPORTATION LLC01/26/2024 → 01/26/20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/30/2026