Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X1PD870975 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections10
all-time
OOS inspections0
of 10
First seenFeb 27, 2024
OH
Last seenJun 8, 2026
AR
Inspected under 2 different carriers in 28 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
1XPBD49X1PD870975
Make
Peterbilt
Model
579
Model year
2023
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.
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
1993 or 2023

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

North American serial sequence
870975

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 · Feb 27, 2024 – Jun 8, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 8, 2026ARIII · Driver-only0—MDA CONSTRUCTION SERVICES LLC 3003765A556881/MS
May 14, 2026ARI · Full2—MDA CONSTRUCTION SERVICES LLC 3003765A556881/AL
Mar 23, 2026GAIII · Driver-only4—MDA CONSTRUCTION SERVICES LLC 3003765A556881/MS
Mar 20, 2026ARIII · Driver-only2—MDA CONSTRUCTION SERVICES LLC 3003765A556881/MS
Jan 30, 2026ALI · Full1—MDA CONSTRUCTION SERVICES LLC 3003765A556881/MS
Jan 11, 2026ARIII · Driver-only1—MDA CONSTRUCTION SERVICES LLC 3003765A556881/MS
Oct 9, 2025GAIII · Driver-only1—SOUTHERN STAR TRANSPORT LLC 3335404A521425/MS
May 15, 2024MOII · Walk-around0—SOUTHERN STAR TRANSPORT LLC 3335404A311100/MS
Mar 5, 2024ALIII · Driver-only2—SOUTHERN STAR TRANSPORT LLC 3335404A311100/MS
Feb 27, 2024OHIII · Driver-only2—SOUTHERN STAR TRANSPORT LLC 3335404A311100/MS
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MDA CONSTRUCTION SERVICES LLC3003765Jan 11, 2026Jun 8, 20266MS
SOUTHERN STAR TRANSPORT LLC3335404Feb 27, 2024Oct 9, 20254MS
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.
A556881MS—MDA CONSTRUCTION SERVICES LLCJan 11, 2026 → Jun 8, 20265
A556881AL—MDA CONSTRUCTION SERVICES LLCMay 14, 2026 → May 14, 20261
A521425MS1SOUTHERN STAR TRANSPORT LLCOct 9, 2025 → Oct 9, 20251
A311100MS1SOUTHERN STAR TRANSPORT LLCFeb 27, 2024 → May 15, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026