Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 389

1XPXP4EX3LD639900 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections10
all-time
OOS inspections3
of 10
First seenAug 2, 2023
AR
Last seenJul 21, 2026
LA
Inspected under 2 different carriers in 35 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
1XPXP4EX3LD639900
Make
Peterbilt
Model
389
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
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
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
XP4EX

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

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
639900

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 · 919 decoded VINs at 100.0% prefix purity.

Model
389

Prefix basis · 919 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
389

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 2, 2023 – Jul 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 21, 2026LAIII · Driver-only0AJC HEAVY HAULING INC 2857035C446CM/GA
May 13, 2026NCIII · Driver-only0AJC HEAVY HAULING INC 2857035C446CM/GA
Apr 6, 2026KSII · Walk-around7AJC HEAVY HAULING INC 2857035C446CM/GA
Mar 23, 2026GAIII · Driver-only0AJC HEAVY HAULING INC 2857035C446CM/GA
Feb 25, 2026MDII · Walk-around6OOSAJC HEAVY HAULING INC 2857035C446CM/GA
Feb 25, 2026MDII · Walk-around6OOSAJC HEAVY HAULING INC 2857035C446CM/GA
Nov 23, 2025TXII · Walk-around3OOSAJC HEAVY HAULING INC 2857035C446CM/GA
Jun 7, 2024SCIII · Driver-only0AJC HEAVY HAULING INC 2857035C446CM/GA
Dec 13, 2023GAIII · Driver-only1256 TRUCKING LLC 12686511191973/AL
Aug 2, 2023ARIII · Driver-only1256 TRUCKING LLC 12686511191973/AL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AJC HEAVY HAULING INC2857035Jun 7, 2024Jul 21, 20268GA
256 TRUCKING LLC1268651Aug 2, 2023Dec 13, 20232AL
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.
C446CMGA1AJC HEAVY HAULING INCJun 7, 2024Jul 21, 20268
1191973AL256 TRUCKING LLCAug 2, 2023Dec 13, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026