Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ZFD callsign genealogy
Currently held by ZONETON FIRE DISTRICT
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 K4ZFD's current licensee, walking backwards.
- KF4LWIcancelledZONETON FIRE DISTRICTKYgranted 1996-09-05cancelled 2001-10-02
Successor callsigns
Callsigns held now by people who previously held K4ZFD.
- JOHNSON, FLORIAN MNCgranted 1997-12-17cancelled 2002-09-05
All historical holders
Every license row we've seen with the callsign K4ZFD, oldest first.
- ZONETON FIRE DISTRICT KY2021-08-03 active
- JOHNSON, FLORIAN M— → cancelled 1997-12-17