Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FTX callsign genealogy
Currently held by HISER, ALFRED C
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 K4FTX's current licensee, walking backwards.
- McDonald, Andrew CGAgranted 2021-03-22cancelled 2022-01-15
Successor callsigns
Callsigns held now by people who previously held K4FTX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4FTX, oldest first.
- HISER, ALFRED C FL1993-05-25 → cancelled 2005-05-26
- McDonald, Andrew C GA2022-01-15 active