Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4K callsign genealogy
Currently held by SHOEMAKER, STEPHEN S
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 KD4K's current licensee, walking backwards.
- SHOEMAKER, STEPHEN SSCgranted 2023-10-21cancelled 2025-06-21
- KD4JTUno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KD4K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4K, oldest first.
- CASH, ANTHONY C GA2013-04-05 → cancelled 2025-06-03
- SHOEMAKER, STEPHEN S SC2025-06-21 active