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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

AK4AJ callsign genealogy

Currently held by Thaler, Wolfgang

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by AK4AJ's current licensee, walking backwards.

  1. AD2IGcancelled· E
    CARUSO, LEONARDONJgranted 2024-05-16cancelled 2024-07-12
  2. KE2DKNcancelled· E
    CARUSO, LEONARDONJgranted 2024-05-16cancelled 2024-06-20

Successor callsigns

Callsigns held now by people who previously held AK4AJ.

  1. WJ4Jcancelled· E
    CARUSO, LEONARDONJgranted 2025-05-09cancelled 2025-06-21
  2. WT0TWactive· E
    Thaler, WolfgangCAgranted 2020-05-27

All historical holders

Every license row we've seen with the callsign AK4AJ, oldest first.

  • Thaler, Wolfgang FL
    2010-07-02 → cancelled 2010-07-24
  • CARUSO, LEONARDO NJ
    2024-07-12 → cancelled 2025-05-09
← Back to AK4AJ License history →