Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ZSA callsign genealogy
Currently held by KISH, FRANK W
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 K4ZSA's current licensee, walking backwards.
- Simmons, Jeffrey BFLgranted 2022-08-16cancelled 2022-09-09
Successor callsigns
Callsigns held now by people who previously held K4ZSA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ZSA, oldest first.
- KISH, FRANK W VA1995-08-28 → cancelled 2007-08-29
- Simmons, Jeffrey B FL2022-09-09 active