Equipment unit · VIN-decoded · NHTSA vPIC

2022 Peterbilt 579

1XPBD49X5ND801770 · Truck-Tractor · TRUCK
Carriers run under3
26 mo
Inspections8
all-time
OOS inspections2
of 8
First seenMar 3, 2024
TX
Last seenMay 13, 2026
US
Inspected under 3 different carriers in 26 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
1XPBD49X5ND801770
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 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
BD49X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

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
801770

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 · Mar 3, 2024 – May 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 13, 2026USII · Walk-around2OOSFRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770779/TX
Mar 3, 2026TXII · Walk-around2FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770779/TX
Oct 29, 2025AZII · Walk-around7OOSFRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770779/TX
Mar 18, 2025CAI · Full0FRONTERA EXPRESS LIMITED LIABILITY COMPANY 1205403R770779/TX
Feb 11, 2025TXII · Walk-around0MTT TRANSPORTATION SERVICES LLC 359150168W735V/TX
Feb 7, 2025TXI · Full1MTT TRANSPORTATION SERVICES LLC 359150183ES3R/TX
Sep 18, 2024LAIII · Driver-only3ZARO TRANSPORTATION LLC 1741743R590510/TX
Mar 3, 2024TXII · Walk-around0ZARO TRANSPORTATION LLC 1741743R590510/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FRONTERA EXPRESS LIMITED LIABILITY COMPANY1205403Mar 18, 2025May 13, 20264TX
MTT TRANSPORTATION SERVICES LLC3591501Feb 7, 2025Feb 11, 20252TX
ZARO TRANSPORTATION LLC1741743Mar 3, 2024Sep 18, 20242TX
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.
R770779TXFRONTERA EXPRESS LIMITED LIABILITY COMPANYMar 18, 2025May 13, 20264
68W735VTXMTT TRANSPORTATION SERVICES LLCFeb 11, 2025Feb 11, 20251
83ES3RTXMTT TRANSPORTATION SERVICES LLCFeb 7, 2025Feb 7, 20251
R590510TXZARO TRANSPORTATION LLCMar 3, 2024Sep 18, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026