Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7AZJ callsign genealogy
Currently held by Grudem, Joshua G
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 K7AZJ's current licensee, walking backwards.
- Grudem, Joshua GAZgranted 2024-06-19cancelled 2025-03-25
Successor callsigns
Callsigns held now by people who previously held K7AZJ.
- Davis, Jerry FMSgranted 2021-09-21
All historical holders
Every license row we've seen with the callsign K7AZJ, oldest first.
- Davis, Jerry F MS2017-12-27 → cancelled 2021-09-21
- Grudem, Joshua G AZ2025-03-25 active