2021 Appalachian Trailers Inc.
Decoded identity
From the 17-character VIN via NHTSA vPIC
- VIN
- 5Z5GC3621MS000444
- Make
- Appalachian Trailers Inc.
- Model
- Appalachian Trailers Inc.
- Model year
- 2021
- Body class
- Trailer
- Vehicle type
- TRAILER
- GVWR
- Not decoded
- Decoded at
- Jun 21, 2026
Decode evidence & sources
Deterministic structure
These fields come directly from VIN positions and the published checksum calculation, with zero store IO.
Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.
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.
The platform resolver did not return a reliable response
Deterministic validation above is complete. Platform fields are withheld because an outage is not evidence that the VIN has no known platform.
Not established
- platform resolution (temporarily unavailable)
These are withheld claims, not negative findings.
Inspection history
Every roadside inspection of this VIN, newest first · May 15, 2024 – Aug 31, 2026
Carriers this unit has run under
5 distinct carriers · grouped by DOT · newest activity first
Plate & unit-number history
The same truck under different plate registrations across carriers