Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4AM callsign genealogy
Currently held by BOYER, DON L
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 AF4AM's current licensee, walking backwards.
- Madison, William DKYgranted 2012-05-07cancelled 2012-10-19
Successor callsigns
Callsigns held now by people who previously held AF4AM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AF4AM, oldest first.
- BOYER, DON L KY1996-12-04 → cancelled 2002-12-15
- MADISON, WILLIAM D KY2022-07-22 active