Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4AD callsign genealogy
Currently held by Yon Jr, Joseph W
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 KY4AD's current licensee, walking backwards.
- Yon Jr, Joseph WSCgranted 2011-08-09cancelled 2020-08-03
Successor callsigns
Callsigns held now by people who previously held KY4AD.
No current licensee on record previously held this callsign.