Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JDI callsign genealogy
Currently held by WISNER, WHAYNE T
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 K4JDI's current licensee, walking backwards.
- HENRY, RICHARD AORgranted 2019-07-12cancelled 2019-09-17
Successor callsigns
Callsigns held now by people who previously held K4JDI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4JDI, oldest first.
- WISNER, WHAYNE T KY2007-06-13 → cancelled 2019-08-27
- HENRY, RICHARD A OR2019-09-17 active