Equipment unit · VIN-decoded · NHTSA vPIC

1XPHDP9X3CD155640

Not yet decoded
Carriers run under2
23 mo
Inspections2
all-time
OOS inspections1
of 2
First seenJan 17, 2024
CA
Last seenDec 7, 2025
TX
Inspected under 2 different carriers in 23 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
HDP9X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1982 or 2012

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

North American serial sequence
155640

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 · 646 decoded VINs at 100.0% prefix purity.

Model
386

Prefix basis · 646 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 · Jan 17, 2024 – Dec 7, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 7, 2025TXII · Walk-around0VIVANCO TRUCKING LLC 2552619R793000/TX
Jan 17, 2024CAI · Full8OOSJOSEPH UNDERWOOD 1410797ZP05120/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
VIVANCO TRUCKING LLC2552619Dec 7, 2025Dec 7, 20251TX
JOSEPH UNDERWOOD1410797Jan 17, 2024Jan 17, 20241CA
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.
R793000TXVIVANCO TRUCKING LLCDec 7, 2025Dec 7, 20251
ZP05120CAJOSEPH UNDERWOODJan 17, 2024Jan 17, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC