Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBDP9X2LD732986 · Truck-Tractor · TRUCK
Carriers run under3
34 mo
Inspections4
all-time
OOS inspections1
of 4
First seenOct 16, 2023
AZ
Last seenAug 20, 2026
WI
Inspected under 3 different carriers in 34 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
1XPBDP9X2LD732986
Make
Peterbilt
Model
579
Model year
2020
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 31, 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
BDP9X

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
1990 or 2020

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

North American serial sequence
732986

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 · 21,366 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 21,366 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.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
579

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

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 · Oct 16, 2023 – Aug 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 20, 2026WIII · Walk-around1OOSSERVICE ONE TRANSPORTATION INC 69413825916Z/WI
Jan 10, 2025WIII · Walk-around1CORSON TRANSPORT LLC 3497619NO PLATE/WI
Dec 12, 2023CAI · Full0COASTAL CARRIERS TRUCK LINES LLC 85911560AT8A/MO
Oct 16, 2023AZII · Walk-around5COASTAL CARRIERS TRUCK LINES LLC 85911560AT8A/MO
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SERVICE ONE TRANSPORTATION INC694138Aug 20, 2026Aug 20, 20261WI
CORSON TRANSPORT LLC3497619Jan 10, 2025Jan 10, 20251WI
COASTAL CARRIERS TRUCK LINES LLC859115Oct 16, 2023Dec 12, 20232MO
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.
25916ZWI1SERVICE ONE TRANSPORTATION INCAug 20, 2026Aug 20, 20261
NO PLATEWICORSON TRANSPORT LLCJan 10, 2025Jan 10, 20251
60AT8AMOCOASTAL CARRIERS TRUCK LINES LLCOct 16, 2023Dec 12, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 31, 2026