Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5CZY callsign genealogy
Currently held by Chen, Zhiyuan
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 K5CZY's current licensee, walking backwards.
- Chen, ZhiyuanLAgranted 2018-03-20cancelled 2018-08-10
Successor callsigns
Callsigns held now by people who previously held K5CZY.
No current licensee on record previously held this callsign.