Equipment unit · VIN-decoded · NHTSA vPIC

2024 Peterbilt 579

1XPBD49X1RD638444 · Truck-Tractor · TRUCK
Carriers run under2
29 mo
Inspections6
all-time
OOS inspections0
of 6
First seenMay 22, 2024
GA
Last seenOct 9, 2026
LA
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
1XPBD49X1RD638444
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
Jul 12, 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
1 · valid

Deterministic · position 9; calculated value 1.

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
638444

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 · May 22, 2024 – Oct 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 9, 2026LAII · Walk-around0—RD TRANS LLC 3559877DF87KD/FL
Aug 29, 2026MSIII · Driver-only0—RD TRANS LLC 3559877DF87KD/FL
Mar 9, 2026NCIII · Driver-only1—RD TRANS LLC 3559877DF87KD/FL
Feb 11, 2026NCIII · Driver-only0—RD TRANS LLC 3559877DF87KD/FL
Jun 13, 2024TNI · Full1—ASCEND TRUCKING LLC 3714095T6086HY/TN
May 22, 2024GAIII · Driver-only2—ASCEND TRUCKING LLC 3714095T6086HY/TN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RD TRANS LLC3559877Feb 11, 2026Oct 9, 20264FL
ASCEND TRUCKING LLC3714095May 22, 2024Jun 13, 20242TN
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.
DF87KDFL1RD TRANS LLCFeb 11, 2026 → Oct 9, 20264
T6086HYTN—ASCEND TRUCKING LLCMay 22, 2024 → Jun 13, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026