Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4IKO callsign genealogy
Currently held by Boone, Charles W
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 K4IKO's current licensee, walking backwards.
- Boone, Charles WFLgranted 2018-01-05cancelled 2018-01-26
Successor callsigns
Callsigns held now by people who previously held K4IKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4IKO, oldest first.
- GULLAND, GEORGE R FL1991-03-12 → cancelled 2003-03-13
- Boone, Charles W FL2018-01-26 active