Equipment unit · VIN-decoded · NHTSA vPIC

2015 Peterbilt 579

1XPBD49X8FD277077 · Truck-Tractor · TRUCK
Carriers run under2
25 mo
Inspections5
all-time
OOS inspections1
of 5
First seenAug 13, 2024
MO
Last seenSep 20, 2026
AL
Inspected under 2 different carriers in 25 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
1XPBD49X8FD277077
Make
Peterbilt
Model
579
Model year
2015
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 12, 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
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1985 or 2015

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

North American serial sequence
277077

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.

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 13, 2024 – Sep 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 20, 2026ALII · Walk-around0—DSL TRANS INC 2156986A25191/WY
Mar 25, 2026NEIII · Driver-only0—MS TRANS INC 2168402A25191/WY
Aug 22, 2025ALII · Walk-around26OOSDSL TRANS INC 2156986A25191/WY
Aug 13, 2025GAII · Walk-around2—DSL TRANS INC 2156986A25191/WY
Aug 13, 2024MOII · Walk-around3—DSL TRANS INC 2156986A18356/WY
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DSL TRANS INC2156986Aug 13, 2024Sep 20, 20264WY
MS TRANS INC2168402Mar 25, 2026Mar 25, 20261IL
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.
A25191WY1DSL TRANS INCAug 13, 2025 → Sep 20, 20263
A25191WY—MS TRANS INCMar 25, 2026 → Mar 25, 20261
A18356WY—DSL TRANS INCAug 13, 2024 → Aug 13, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026