Equipment unit · VIN-decoded · NHTSA vPIC

2024 Peterbilt 579

1XPBD49X4RD638356 · Truck-Tractor · TRUCK
Carriers run under3
21 mo
Inspections9
all-time
OOS inspections1
of 9
First seenJun 24, 2024
SD
Last seenMar 21, 2026
UT
Inspected under 3 different carriers in 21 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
1XPBD49X4RD638356
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 19, 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 24, 2024 – Mar 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 21, 2026UTI · Full2—WILLIAMS TRANSPORTATION INC 2876952427559/NE
Feb 16, 2026SDI · Full12OOSWILLIAMS TRANSPORTATION INC 2876952427559/NE
May 19, 2025NEIII · Driver-only0—WILLIAMS TRANSPORTATION INC 2876952427559/NE
May 13, 2025MNIII · Driver-only1—WILLIAMS TRANSPORTATION INC 2876952427559/NE
Apr 17, 2025NEIII · Driver-only1—WILLIAMS TRANSPORTATION INC 2876952427559/NE
Oct 11, 2024MOIII · Driver-only0—WILLIAMS TRANSPORTATION INC 2876952TEMP/NE
Oct 6, 2024MOI · Full0—MERCER TRANSPORTATION COMPANY INC 1547123755201/IN
Aug 27, 2024KSII · Walk-around1—MERCER TRANSPORTATION COMPANY INC 1547123755201/IN
Jun 24, 2024SDIII · Driver-only1—AA TEMPERATURE CONTROLLED LLC 908846421611/NE
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILLIAMS TRANSPORTATION INC2876952Oct 11, 2024Mar 21, 20266NE
MERCER TRANSPORTATION COMPANY INC154712Aug 27, 2024Oct 6, 20242KY
AA TEMPERATURE CONTROLLED LLC908846Jun 24, 2024Jun 24, 20241NE
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.
427559NE—WILLIAMS TRANSPORTATION INCApr 17, 2025 → Mar 21, 20265
TEMPNE—WILLIAMS TRANSPORTATION INCOct 11, 2024 → Oct 11, 20241
3755201IN—MERCER TRANSPORTATION COMPANY INCAug 27, 2024 → Oct 6, 20242
421611NE—AA TEMPERATURE CONTROLLED LLCJun 24, 2024 → Jun 24, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026