Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4VZ callsign genealogy
Currently held by Liu, Yazhuo
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 KY4VZ's current licensee, walking backwards.
- Liu, YazhuoGAgranted 2023-01-12cancelled 2023-03-10
Successor callsigns
Callsigns held now by people who previously held KY4VZ.
No current licensee on record previously held this callsign.