Equipment unit · VIN-decoded · NHTSA vPIC

2006 Peterbilt 379

1XP5DB9X56N894674 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections6
all-time
OOS inspections1
of 6
First seenNov 14, 2023
AZ
Last seenMar 26, 2026
CA
Inspected under 2 different carriers in 28 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
1XP5DB9X56N894674
Make
Peterbilt
Model
379
Model year
2006
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 24, 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
5DB9X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
2006 or 2036

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

North American serial sequence
894674

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 · 13,463 decoded VINs at 100.0% prefix purity.

Model
379

Prefix basis · 13,463 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
2006

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
379

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 · Nov 14, 2023 – Mar 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 26, 2026CAI · Full1SEVENTY SEVEN TRANSPORT LLC 3285092AM57850/AZ
Feb 18, 2026AZII · Walk-around9SEVENTY SEVEN TRANSPORT LLC 3285092AM57850/AZ
Mar 25, 2025AZI · Full5OOSSEVENTY SEVEN TRANSPORT LLC 3285092AM57850/AZ
Dec 5, 2024AZII · Walk-around1TRANSPORT DYNAMICS LLC 1301572PHA9SE/AZ
May 29, 2024AZII · Walk-around2SEVENTY SEVEN TRANSPORT LLC 3285092PHA9SE/AZ
Nov 14, 2023AZIII · Driver-only1SEVENTY SEVEN TRANSPORT LLC 3285092PHA9SE/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SEVENTY SEVEN TRANSPORT LLC3285092Nov 14, 2023Mar 26, 20265AZ
TRANSPORT DYNAMICS LLC1301572Dec 5, 2024Dec 5, 20241AZ
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.
AM57850AZSEVENTY SEVEN TRANSPORT LLCMar 25, 2025Mar 26, 20263
PHA9SEAZTRANSPORT DYNAMICS LLCDec 5, 2024Dec 5, 20241
PHA9SEAZSEVENTY SEVEN TRANSPORT LLCNov 14, 2023May 29, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026