Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ZN callsign genealogy
Currently held by LEONHARDY, FRANK C
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 K7ZN's current licensee, walking backwards.
- THOVSON, LEE SWAgranted 1991-09-10cancelled 2000-03-21
Successor callsigns
Callsigns held now by people who previously held K7ZN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7ZN, oldest first.
- LEONHARDY, FRANK C WA1988-03-01 → cancelled 2000-03-02
- THOVSON, LEE S WA2020-01-17 active