Equipment unit · VIN-decoded · NHTSA vPIC

Peterbilt 579

1NPBGGGG30D455541 · Incomplete - Glider · INCOMPLETE VEHICLE
Carriers run under3
18 mo
Inspections4
all-time
OOS inspections1
of 4
First seenOct 29, 2024
AL
Last seenApr 17, 2026
TX
Inspected under 3 different carriers in 18 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
1NPBGGGG30D455541
Make
Peterbilt
Model
579
Model year
Body class
Incomplete - Glider
Vehicle type
INCOMPLETE VEHICLE
GVWR
Not decoded
Decoded at
Jul 7, 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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BGGGG

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
Not established

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

North American serial sequence
455541

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 · 288 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 288 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
Not established

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
Incomplete - Glider

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model year
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 29, 2024 – Apr 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 17, 2026TXII · Walk-around0COMPACT TRUCKING LLC 4238796NLC534803/IL
Jan 29, 2026TXII · Walk-around2OOSTRANS INTERNATIONAL TRUCKING INC 732271R720887/TX
Dec 17, 2025TXII · Walk-around0TRANS INTERNATIONAL TRUCKING INC 732271R720887/TX
Oct 29, 2024ALII · Walk-around0GREATWIDE AMERICAN TRANS-FREIGHT LLC 753551R720887/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
COMPACT TRUCKING LLC4238796Apr 17, 2026Apr 17, 20261IA
TRANS INTERNATIONAL TRUCKING INC732271Dec 17, 2025Jan 29, 20262CA
GREATWIDE AMERICAN TRANS-FREIGHT LLC753551Oct 29, 2024Oct 29, 20241PA
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.
NLC534803ILCOMPACT TRUCKING LLCApr 17, 2026Apr 17, 20261
R720887TXTRANS INTERNATIONAL TRUCKING INCDec 17, 2025Jan 29, 20262
R720887TXGREATWIDE AMERICAN TRANS-FREIGHT LLCOct 29, 2024Oct 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026