Equipment unit · VIN-decoded · NHTSA vPIC

2023 Great Dane Trailers

1GR4M0628PH502500 · Trailer · TRAILER
Freedom
Carriers run under3
27 mo
Inspections5
all-time
OOS inspections2
of 5
First seenAug 29, 2023
TX
Last seenNov 20, 2025
IL
Inspected under 3 different carriers in 27 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
1GR4M0628PH502500
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 26, 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
1GR

Deterministic · VIN positions 1–3.

Vehicle descriptor section
4M062

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1993 or 2023

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

North American serial sequence
502500

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
GREAT DANE TRAILERS

Prefix basis · 2,215 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 2,215 decoded VINs at 100.0% prefix purity.

Model line
Freedom

Sourced label · prefix basis 2,215 decoded VINs at 100.0% prefix purity.

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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
GREAT DANE TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Great Dane Trailers

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.

Not established

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 29, 2023 – Nov 20, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 20, 2025ILIII · Driver-only0UNICORN EXPRESS LLC 18146354UL8245/CA
Nov 4, 2025TXII · Walk-around0AUTOLINEAS PERZA SA DE CV 33469394UL8245/CA
Jul 24, 2024USI · Full6OOSAUTOLINEAS PERZA SA DE CV 33469394UL8245/CA
Feb 1, 2024NCII · Walk-around6OOSD-LANE TRANSPORTATION INC 31782534UL8245/CA
Aug 29, 2023TXII · Walk-around2AUTOLINEAS PERZA SA DE CV 33469394UL8245/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UNICORN EXPRESS LLC1814635Nov 20, 2025Nov 20, 20251TX
AUTOLINEAS PERZA SA DE CV3346939Aug 29, 2023Nov 4, 20253CH
D-LANE TRANSPORTATION INC3178253Feb 1, 2024Feb 1, 20241MI
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.
4UL8245CAUNICORN EXPRESS LLCNov 20, 2025Nov 20, 20251
4UL8245CAAUTOLINEAS PERZA SA DE CVAug 29, 2023Nov 4, 20253
4UL8245CAD-LANE TRANSPORTATION INCFeb 1, 2024Feb 1, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 26, 2026