Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBD49X0LD676559 · Truck-Tractor · TRUCK
Carriers run under3
22 mo
Inspections6
all-time
OOS inspections1
of 6
First seenAug 16, 2023
OK
Last seenJun 10, 2025
IL
Inspected under 3 different carriers in 22 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
1XPBD49X0LD676559
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 4, 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
0 · valid

Deterministic · position 9; calculated value 0.

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
676559

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.

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 · Aug 16, 2023 – Jun 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 10, 2025ILIII · Driver-only0ROYAL GLOBAL TRANSPORT LLC 3952892P1227550/IL
Sep 3, 2024OHII · Walk-around3OOSROYAL GLOBAL TRANSPORT LLC 3952892P1227550/IN
Jun 17, 2024KYIII · Driver-only3YAN EXPRESS LLC 3981564NONW/IL
Jun 5, 2024MOIII · Driver-only2YAN EXPRESS LLC 3981564TEMPORARY/IL
May 21, 2024INI · Full2YAN EXPRESS LLC 3981564TEMP/IL
Aug 16, 2023OKII · Walk-around1FLYSTAR LLC 378714423466PF/NY
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROYAL GLOBAL TRANSPORT LLC3952892Sep 3, 2024Jun 10, 20252OH
YAN EXPRESS LLC3981564May 21, 2024Jun 17, 20243IL
FLYSTAR LLC3787144Aug 16, 2023Aug 16, 20231IL
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.
P1227550ILROYAL GLOBAL TRANSPORT LLCJun 10, 2025Jun 10, 20251
P1227550INROYAL GLOBAL TRANSPORT LLCSep 3, 2024Sep 3, 20241
NONWIL1YAN EXPRESS LLCJun 17, 2024Jun 17, 20241
TEMPORARYIL1YAN EXPRESS LLCJun 5, 2024Jun 5, 20241
TEMPIL1YAN EXPRESS LLCMay 21, 2024May 21, 20241
23466PFNYFLYSTAR LLCAug 16, 2023Aug 16, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 4, 2026