Equipment unit · VIN-decoded · NHTSA vPIC

2015 Peterbilt 579

1XPBDP9X3FD266456 · Truck-Tractor · TRUCK
Carriers run under1
15 mo
Inspections5
all-time
OOS inspections0
of 5
First seenFeb 29, 2024
TN
Last seenMay 21, 2025
MS
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPBDP9X3FD266456
Make
Peterbilt
Model
579
Model year
2015
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
BDP9X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1985 or 2015

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

North American serial sequence
266456

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
2015

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 · Feb 29, 2024 – May 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
May 21, 2025MSIII · Driver-only1THREE NATIONS TRANSPORT LLC 1159774R511601/TX
Mar 3, 2025GAIII · Driver-only2THREE NATIONS TRANSPORT LLC 1159774R511601/TX
Feb 4, 2025MSIII · Driver-only0THREE NATIONS TRANSPORT LLC 1159774R511601/TX
Jun 20, 2024ALIII · Driver-only0THREE NATIONS TRANSPORT LLC 1159774R511601/TX
Feb 29, 2024TNIII · Driver-only1THREE NATIONS TRANSPORT LLC 1159774R511601/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
THREE NATIONS TRANSPORT LLC1159774Feb 29, 2024May 21, 20255TX
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.
R511601TXTHREE NATIONS TRANSPORT LLCFeb 29, 2024May 21, 20255
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026