Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4YIO callsign genealogy
Currently held by Daugherty, Brandon D
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 KF4YIO's current licensee, walking backwards.
- Daugherty, Brandon DGAgranted 2016-02-19cancelled 2016-03-08
Successor callsigns
Callsigns held now by people who previously held KF4YIO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4YIO, oldest first.
- Absalom, John C GA1998-05-07 → cancelled 2010-05-08
- Daugherty, Brandon D GA2026-01-21 active