Equipment unit · VIN-decoded · NHTSA vPIC

2022 Utility Trailer Manufacturer

1UYFS2531N5561838 · Trailer · TRAILER
Axles · 2 axlesBody · FlatLength · 53 ft
Carriers run under2
17 mo
Inspections6
all-time
OOS inspections0
of 6
First seenNov 15, 2024
NM
Last seenApr 28, 2026
AZ
Inspected under 2 different carriers in 17 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
1UYFS2531N5561838
Make
Utility Trailer Manufacturer
Model
Utility Trailer Manufacturer
Model year
2022
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
1UY

Deterministic · VIN positions 1–3.

Vehicle descriptor section
FS253

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
561838

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
UTILITY TRAILER MANUFACTURER

Prefix basis · 3,515 decoded VINs at 100.0% prefix purity.

Model
Utility Trailer Manufacturer

Prefix basis · 3,515 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
UTILITY TRAILER MANUFACTURER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Utility Trailer Manufacturer

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

VIN-level rule claims

Rules published for individual VIN positions beyond the prefix — applied with the WMI, prefix, and model-year guards each rule was validated under. Year-scoped rules were checked against model year 2022, established by the federal observation agreeing with a position-10 candidate.

Axle configuration
2 axles

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

Body family
Flat

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

Trailer length
53 ft

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

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 · Nov 15, 2024 – Apr 28, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 28, 2026AZII · Walk-around1CORNERSTONE LOGISTICS TX LLC 2535949CZ8234/OK
Jan 1, 2026TXII · Walk-around2CORNERSTONE LOGISTICS TX LLC 2535949CZ8234/OK
Sep 22, 2025CAI · Full1CORNERSTONE LOGISTICS TX LLC 2535949CZ8234/OK
Aug 15, 2025COI · Full6CORNERSTONE LOGISTICS TX LLC 2535949CZ8234/OK
Mar 26, 2025TNIII · Driver-only1SK TRANSPORT LLC 4160329CZ8234/OK
Nov 15, 2024NMII · Walk-around1SK TRANSPORT LLC 4160329CZ8234/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CORNERSTONE LOGISTICS TX LLC2535949Aug 15, 2025Apr 28, 20264TX
SK TRANSPORT LLC4160329Nov 15, 2024Mar 26, 20252TX
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.
CZ8234OKCORNERSTONE LOGISTICS TX LLCAug 15, 2025Apr 28, 20264
CZ8234OKSK TRANSPORT LLCNov 15, 2024Mar 26, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026