Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6WIZ callsign genealogy
Currently held by CHUNG, WILLIS
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 K6WIZ's current licensee, walking backwards.
- CHUNG, WILLISCAgranted 2024-04-11cancelled 2024-05-10
Successor callsigns
Callsigns held now by people who previously held K6WIZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6WIZ, oldest first.
- Mc Donald, Frederick J CA2011-03-08 → cancelled 2023-05-31
- CHUNG, WILLIS CA2024-05-10 active