Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4ZKS callsign genealogy
Currently held by CROATMAN JR, CHARLES L
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 K4ZKS's current licensee, walking backwards.
- CROATMAN JR, CHARLES LFLgranted 1997-05-09cancelled 2004-11-23
Successor callsigns
Callsigns held now by people who previously held K4ZKS.
No current licensee on record previously held this callsign.