Equipment unit · VIN-decoded · NHTSA vPIC

1REFA5203XC991637

Not yet decoded
Carriers run under2
24 mo
Inspections5
all-time
OOS inspections0
of 5
First seenApr 3, 2024
CA
Last seenApr 14, 2026
CA
Inspected under 2 different carriers in 24 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
1REFA5203XC991637
Make
Not decoded
Model
Not decoded
Model year
—
Body class
Not decoded
Vehicle type
Not decoded
GVWR
Not decoded
Decoded at
Jun 28, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · Apr 3, 2024 – Apr 14, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 14, 2026CAI · Full0—GRANITE ROCK COMPANY 7141884WU5861/CA
Jan 15, 2026CAIII · Driver-only2—GRANITE ROCK COMPANY 7141884WU5861/CA
Jun 10, 2025CAII · Walk-around0—GRANITE ROCK COMPANY 7141884WU5861/CA
May 7, 2024CAI · Full0—TRI COUNTY TRANSPORT INC 30584561WF1371/CA
Apr 3, 2024CAI · Full3—TRI COUNTY TRANSPORT INC 30584561WF1371/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GRANITE ROCK COMPANY714188Jun 10, 2025Apr 14, 20263CA
TRI COUNTY TRANSPORT INC3058456Apr 3, 2024May 7, 20242CA
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.
4WU5861CA—GRANITE ROCK COMPANYJun 10, 2025 → Apr 14, 20263
1WF1371CA—TRI COUNTY TRANSPORT INCApr 3, 2024 → May 7, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026