Equipment unit · VIN-decoded · NHTSA vPIC

2024 Peterbilt 579

1XPBD49X9RD638661 · Truck-Tractor · TRUCK
Carriers run under3
24 mo
Inspections5
all-time
OOS inspections0
of 5
First seenMar 31, 2024
OK
Last seenMar 2, 2026
VA
Inspected under 3 different carriers in 24 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
1XPBD49X9RD638661
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 29, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BD49X

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1994 or 2024

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
638661

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
PETERBILT

Prefix basis · 26,166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 26,166 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Mar 31, 2024 – Mar 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 2, 2026VAIII · Driver-only1—NEXT UNLIMITED TRUCKING SERVICE LLC 3414318DF97HB/FL
Jun 12, 2025SDIII · Driver-only0—NEXT UNLIMITED TRUCKING SERVICE LLC 3414318DF97HB/FL
Dec 13, 2024ARIII · Driver-only0—J B HUNT TRANSPORT INC 808063724500/IN
Dec 2, 2024ARII · Walk-around1—J B HUNT TRANSPORT INC 808063724500/AR
Mar 31, 2024OKII · Walk-around1—AA TEMPERATURE CONTROLLED LLC 908846TEMP/NE
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NEXT UNLIMITED TRUCKING SERVICE LLC3414318Jun 12, 2025Mar 2, 20262FL
J B HUNT TRANSPORT INC80806Dec 2, 2024Dec 13, 20242AR
AA TEMPERATURE CONTROLLED LLC908846Mar 31, 2024Mar 31, 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.
DF97HBFL—NEXT UNLIMITED TRUCKING SERVICE LLCJun 12, 2025 → Mar 2, 20262
3724500IN—J B HUNT TRANSPORT INCDec 13, 2024 → Dec 13, 20241
3724500AR—J B HUNT TRANSPORT INCDec 2, 2024 → Dec 2, 20241
TEMPNE—AA TEMPERATURE CONTROLLED LLCMar 31, 2024 → Mar 31, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026