Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TOK callsign genealogy
Currently held by Leys, William D
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 K4TOK's current licensee, walking backwards.
- LEYS, WILLIAM DVAgranted 1990-04-17cancelled 2000-12-27
Successor callsigns
Callsigns held now by people who previously held K4TOK.
No current licensee on record previously held this callsign.