Equipment unit · VIN-decoded · NHTSA vPIC

4EPAA3633VASA1660

Not yet decoded
Carriers run under1
9 mo
Inspections2
all-time
OOS inspections1
of 2
First seenSep 22, 2025
TX
Last seenJun 29, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
4EP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AA363

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1997 or 2027

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

North American serial sequence
SA1660

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 22, 2025 – Jun 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 29, 2026TXII · Walk-around3OOSOY AND SONS HAULING LLC 3747550185C865/TX
Sep 22, 2025TXII · Walk-around1OY AND SONS HAULING LLC 3747550185C865/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OY AND SONS HAULING LLC3747550Sep 22, 2025Jun 29, 20262TX
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.
185C865TX2OY AND SONS HAULING LLCSep 22, 2025Jun 29, 20262
Sources: FMCSA SAFER · L&I · NHTSA vPIC