Equipment unit · VIN-decoded · NHTSA vPIC

2022 Peterbilt 579

1XPBD49X7ND801771 · Truck-Tractor · TRUCK
Carriers run under2
33 mo
Inspections14
all-time
OOS inspections2
of 14
First seenOct 18, 2023
TX
Last seenJul 21, 2026
US
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
1XPBD49X7ND801771
Make
Peterbilt
Model
579
Model year
2022
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 16, 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
BD49X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1992 or 2022

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

North American serial sequence
801771

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 · 26,166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 26,166 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
2022

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 · Oct 18, 2023 – Jul 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 21, 2026USI · Full2OOSFRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Apr 21, 2026USI · Full2FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Mar 31, 2026ALII · Walk-around5OOSFRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Feb 14, 2026TXII · Walk-around2FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Jan 28, 2026TXII · Walk-around0FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Dec 26, 2025USII · Walk-around0FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Dec 1, 2025MIIII · Driver-only1FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Nov 21, 2025USI · Full3FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Oct 25, 2025TXII · Walk-around0FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Aug 6, 2025LAII · Walk-around2FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Jun 3, 2025USI · Full0FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770780/TX
Jul 18, 2024LAIII · Driver-only3ZARO TRANSPORTATION LLC 1741743R590511/TX
Dec 4, 2023LAII · Walk-around1ZARO TRANSPORTATION LLC 1741743R590511/TX
Oct 18, 2023TXII · Walk-around0ZARO TRANSPORTATION LLC 1741743R590511/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FRONTERA EXPRESS LIMITED LIABILITY COMPANY1205403Jun 3, 2025Jul 21, 202611TX
ZARO TRANSPORTATION LLC1741743Oct 18, 2023Jul 18, 20243TX
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.
R770780TX1FRONTERA EXPRESS LIMITED LIABILITY COMPANYJun 3, 2025Jul 21, 202611
R590511TXZARO TRANSPORTATION LLCOct 18, 2023Jul 18, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026