Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4ZVZ callsign genealogy
Currently held by Cour, Susan 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 K4ZVZ's current licensee, walking backwards.
- Cunningham, Robert LGAgranted 2020-04-20cancelled 2020-05-12
Successor callsigns
Callsigns held now by people who previously held K4ZVZ.
- VERNUCCI, ANTONIOVAgranted 2017-11-21
All historical holders
Every license row we've seen with the callsign K4ZVZ, oldest first.
- TIBBETS, PAUL W FL1988-05-17 → cancelled 2000-05-18
- Cour, Susan M MI2003-07-22 → cancelled 2015-07-23
- VERNUCCI, ANTONIO CA2016-03-11 → cancelled 2017-11-21
- Cunningham, Robert L AZ2020-05-12 active