Equipment unit · VIN-decoded · NHTSA vPIC

1C93437296S770151

Not yet decoded
Carriers run under2
8 mo
Inspections2
all-time
OOS inspections1
of 2
First seenMay 14, 2025
TX
Last seenJan 15, 2026
TX
Inspected under 2 different carriers in 8 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
1C9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
34372

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

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
770151

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
CONSTRUCTION TRAILER SPECIALISTS

Prefix basis · 6 decoded VINs at 100.0% prefix purity.

Model
CONSTRUCTION TRAILER SPECIALISTS

Prefix basis · 6 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 · May 14, 2025 – Jan 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 15, 2026TXII · Walk-around4HIGHMARK TRUCKING SERVICES LLC 2377382069B508/TX
May 14, 2025TXI · Full9OOSADOLFO ALARCON 2270687069B508/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HIGHMARK TRUCKING SERVICES LLC2377382Jan 15, 2026Jan 15, 20261TX
ADOLFO ALARCON2270687May 14, 2025May 14, 20251TX
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.
069B508TXHIGHMARK TRUCKING SERVICES LLCJan 15, 2026Jan 15, 20261
069B508TXADOLFO ALARCONMay 14, 2025May 14, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC