Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF7DF callsign genealogy
Currently held by KUCK, FREDERIC 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 KF7DF's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KF7DF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF7DF, oldest first.
- KUCK, FREDERIC E AZ1997-05-28 → cancelled 2009-05-29
- FRANKLIN JR, DAVID E WA2026-05-01 active