Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4DC callsign genealogy
Currently held by APPERSON, RONALD M
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 AF4DC's current licensee, walking backwards.
- CUMBELICH, JAMES MTNgranted 2013-03-04cancelled 2017-07-21
Successor callsigns
Callsigns held now by people who previously held AF4DC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AF4DC, oldest first.
- APPERSON, RONALD M KY2001-12-05 → cancelled 2014-03-04
- CUMBELICH, JAMES M TN2017-07-21 active