Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0FRZ callsign genealogy
Currently held by DEPUEW, KIRK F
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 KC0FRZ's current licensee, walking backwards.
- Friesema, Joshua LCOgranted 2015-03-18cancelled 2024-05-07
Successor callsigns
Callsigns held now by people who previously held KC0FRZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0FRZ, oldest first.
- DEPUEW, KIRK F IA1999-05-03 → cancelled 2011-05-04
- Friesema, Joshua L CO2024-05-07 active