Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7JZZ callsign genealogy
Currently held by Zhang, Zhiyu
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 K7JZZ's current licensee, walking backwards.
- Zhang, ZhiyuWAgranted 2015-09-17cancelled 2025-04-25
Successor callsigns
Callsigns held now by people who previously held K7JZZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7JZZ, oldest first.
- Bouris, Sherry M OR2009-07-28 → cancelled 2021-07-29
- Zhang, Zhiyu WA2025-04-25 active