Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SFL callsign genealogy
Currently held by ELLIS, GENE 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 K4SFL's current licensee, walking backwards.
- KQ4QOFcancelledSpace Coast Amatuer Radio SocietyFLgranted 2024-04-02cancelled 2024-07-13
Successor callsigns
Callsigns held now by people who previously held K4SFL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4SFL, oldest first.
- ELLIS, GENE C NC2005-03-24 → cancelled 2017-06-20
- Space Coast Amatuer Radio Society FL2024-07-13 active