Equipment unit · VIN-decoded · NHTSA vPIC

2024 Peterbilt 579

1XPBD49X5RD638415 · Truck-Tractor · TRUCK
Carriers run under4
10 mo
Inspections6
all-time
OOS inspections0
of 6
First seenDec 9, 2024
TN
Last seenOct 22, 2025
TN
Inspected under 4 different carriers in 10 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
1XPBD49X5RD638415
Make
Peterbilt
Model
579
Model year
2024
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 24, 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 · Dec 9, 2024 – Oct 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 22, 2025TNI · Full0—MAX TRANS LLC 1188508W0534HY/TN
Sep 18, 2025ARIII · Driver-only1—MAX TRANS LLC 1188508W0534HY/TN
Apr 8, 2025TXII · Walk-around0—WEST TN EXPEDITING INC 2146479S1244HY/TN
Jan 27, 2025TNI · Full0—ASCEND TRUCKING LLC 3714095S1244HY/UK
Jan 2, 2025KYI · Full2—ASCEND TRUCKING LLC 3714095S1244HY/TN
Dec 9, 2024TNI · Full0—ASCEND TRANSPORTATION LLC 439352S1244HY/TN
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MAX TRANS LLC1188508Sep 18, 2025Oct 22, 20252TN
WEST TN EXPEDITING INC2146479Apr 8, 2025Apr 8, 20251TN
ASCEND TRUCKING LLC3714095Jan 2, 2025Jan 27, 20252TN
ASCEND TRANSPORTATION LLC439352Dec 9, 2024Dec 9, 20241TN
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.
W0534HYTN—MAX TRANS LLCSep 18, 2025 → Oct 22, 20252
S1244HYTN—WEST TN EXPEDITING INCApr 8, 2025 → Apr 8, 20251
S1244HYUK—ASCEND TRUCKING LLCJan 27, 2025 → Jan 27, 20251
S1244HYTN—ASCEND TRUCKING LLCJan 2, 2025 → Jan 2, 20251
S1244HYTN—ASCEND TRANSPORTATION LLCDec 9, 2024 → Dec 9, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026