Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4ZC callsign genealogy
Currently held by BERZINSKAS III, WILLIAM M
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 KY4ZC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KY4ZC.
- BERZINSKAS III, WILLIAM MNCgranted 2024-05-21