Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4CSM callsign genealogy
Currently held by Fox Jr, Cecil E
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 KF4CSM's current licensee, walking backwards.
- Fox Jr, Cecil EFLgranted 2019-02-26cancelled 2019-03-19
Successor callsigns
Callsigns held now by people who previously held KF4CSM.
- DIXON JR, DONALD EALgranted 2018-07-25
All historical holders
Every license row we've seen with the callsign KF4CSM, oldest first.
- Fox Jr, Cecil E FL2019-03-19 active
- DIXON JR, DONALD E— → cancelled 1998-10-06