Equipment unit · VIN-decoded · NHTSA vPIC

2011 Great Dane Trailers

1GRAA0623BT559396 · Trailer · TRAILER
Everest (reefer)
Carriers run under2
13 mo
Inspections3
all-time
OOS inspections1
of 3
First seenDec 9, 2024
KY
Last seenJan 22, 2026
PA
Inspected under 2 different carriers in 13 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
1GRAA0623BT559396
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 19, 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
AA062

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1981 or 2011

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

North American serial sequence
559396

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 · 24,927 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 24,927 decoded VINs at 100.0% prefix purity.

Model line
Everest (reefer)

Sourced label · prefix basis 24,927 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
2011

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 · Dec 9, 2024 – Jan 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 22, 2026PAII · Walk-around3OOSZAPZAP TRANSPORT LLC 3440302QA24CP/FL
Jan 14, 2025LAIII · Driver-only1ARGAYU 4 EVER TRUCKING CORP 3012015QA24CP/FL
Dec 9, 2024KYIII · Driver-only3ARGAYU 4 EVER TRUCKING CORP 3012015QA24CP/FL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ZAPZAP TRANSPORT LLC3440302Jan 22, 2026Jan 22, 20261OH
ARGAYU 4 EVER TRUCKING CORP3012015Dec 9, 2024Jan 14, 20252FL
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.
QA24CPFLZAPZAP TRANSPORT LLCJan 22, 2026Jan 22, 20261
QA24CPFLARGAYU 4 EVER TRUCKING CORPDec 9, 2024Jan 14, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026