Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4YEN callsign genealogy
Currently held by MC GREGOR AMATEUR RADIO SOCIETY
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 KF4YEN's current licensee, walking backwards.
- KN4QQHcancelledMcGregor Amateur Radio SocietyFLgranted 2018-11-21cancelled 2018-12-15
Successor callsigns
Callsigns held now by people who previously held KF4YEN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4YEN, oldest first.
- MC GREGOR AMATEUR RADIO SOCIETY FL1998-04-30 → cancelled 2010-05-01
- McGregor Amateur Radio Society FL2018-12-15 active