Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1ZYW callsign genealogy
Currently held by Zhao, Yuewei
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 K1ZYW's current licensee, walking backwards.
- Zhao, YueweiMAgranted 2016-10-21cancelled 2016-11-08
Successor callsigns
Callsigns held now by people who previously held K1ZYW.
- MANUELIAN, KENNETH SFLgranted 2002-11-02cancelled 2014-11-04
All historical holders
Every license row we've seen with the callsign K1ZYW, oldest first.
- MANUELIAN, KENNETH S FL1994-06-17 → cancelled 2002-11-02
- Zhao, Yuewei MA2016-11-08 active