Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4FZN callsign genealogy
Currently held by Ficken Jr, LARRY 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 K4FZN's current licensee, walking backwards.
- FICKEN Jr, LARRY LNCgranted 2025-04-08cancelled 2025-04-26
Successor callsigns
Callsigns held now by people who previously held K4FZN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4FZN, oldest first.
- ENDRESS, DONALD A NC1997-11-25 → cancelled 2009-11-26
- Ficken Jr, LARRY L NC2025-04-26 active