Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY4NU callsign genealogy
Currently held by SLAYMAN JR, WILLIAM J
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 KY4NU's current licensee, walking backwards.
- Slayman Jr, William JKYgranted 1994-01-18cancelled 2002-12-13
Successor callsigns
Callsigns held now by people who previously held KY4NU.
No current licensee on record previously held this callsign.