Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0FET callsign genealogy
Currently held by Krulik II, Donald J
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 K0FET's current licensee, walking backwards.
- Riehl, Lawrence AMOgranted 2015-10-02cancelled 2018-04-17
Successor callsigns
Callsigns held now by people who previously held K0FET.
- Krulik II, Donald JMOgranted 2020-04-15
All historical holders
Every license row we've seen with the callsign K0FET, oldest first.
- Krulik II, Donald J MO2010-03-12 → cancelled 2010-04-20
- Riehl, Lawrence A MO2018-04-17 active