Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4CSZ callsign genealogy
Currently held by FENDLEY JR, WILLIAM R
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 KK4CSZ's current licensee, walking backwards.
- FENDLEY JR, WILLIAM RSCgranted 2011-05-23cancelled 2011-06-20
Successor callsigns
Callsigns held now by people who previously held KK4CSZ.
- FENDLEY JR, WILLIAM RSCgranted 2021-03-25