Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4JYK callsign genealogy
Currently held by Williams, Stephen G
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 KN4JYK's current licensee, walking backwards.
- Williams, Stephen GFLgranted 2009-07-14cancelled 2018-02-21
Successor callsigns
Callsigns held now by people who previously held KN4JYK.
- Williams, Stephen GCOgranted 2018-03-13