Equipment unit · VIN-decoded · NHTSA vPIC

Peterbilt 389

1NPXGGGG90D677667 · Incomplete - Glider · INCOMPLETE VEHICLE
Carriers run under2
33 mo
Inspections8
all-time
OOS inspections2
of 8
First seenSep 29, 2023
LA
Last seenJun 3, 2026
GA
Inspected under 2 different carriers in 33 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
1NPXGGGG90D677667
Make
Peterbilt
Model
389
Model year
—
Body class
Incomplete - Glider
Vehicle type
INCOMPLETE VEHICLE
GVWR
Not decoded
Decoded at
Jun 21, 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
XGGGG

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
Not established

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

North American serial sequence
677667

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 · 4,012 decoded VINs at 100.0% prefix purity.

Model
389

Prefix basis · 4,012 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 year
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 29, 2023 – Jun 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 3, 2026GAIII · Driver-only0—SOUTHERN PIPE & SUPPLY COMPANY INC 79183A551556/MS
Apr 15, 2026ALIII · Driver-only1—SOUTHERN PIPE & SUPPLY COMPANY INC 79183A551556/MS
Sep 9, 2025MSI · Full0—SOUTHERN PIPE & SUPPLY COMPANY INC 79183A551556/MS
Aug 10, 2024UTII · Walk-around9OOSDIXIE EXPRESS LLC 1644704A520574/MS
Jul 18, 2024ORIII · Driver-only0—DIXIE EXPRESS LLC 1644704A470178/MS
Apr 12, 2024WAI · Full6OOSDIXIE EXPRESS LLC 1644704A470178/MS
Jan 19, 2024COIII · Driver-only1—DIXIE EXPRESS LLC 1644704A470178/MS
Sep 29, 2023LAIII · Driver-only2—DIXIE EXPRESS LLC 1644704A470178/MS
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHERN PIPE & SUPPLY COMPANY INC79183Sep 9, 2025Jun 3, 20263MS
DIXIE EXPRESS LLC1644704Sep 29, 2023Aug 10, 20245MS
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.
A551556MS—SOUTHERN PIPE & SUPPLY COMPANY INCSep 9, 2025 → Jun 3, 20263
A520574MS—DIXIE EXPRESS LLCAug 10, 2024 → Aug 10, 20241
A470178MS—DIXIE EXPRESS LLCSep 29, 2023 → Jul 18, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026