Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD6FOZ callsign genealogy
Currently held by Chruszch, Jon P
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 KD6FOZ's current licensee, walking backwards.
- Chruszch, Jon PCAgranted 2017-05-30cancelled 2020-10-06
Successor callsigns
Callsigns held now by people who previously held KD6FOZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD6FOZ, oldest first.
- CHRUSZCH, JON P CA1992-02-04 → cancelled 2004-02-05
- Chruszch, Jon P CA2020-10-06 active