Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4WHJ callsign genealogy
Currently held by JOHNSON JR, WILLIAM H
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 KY4WHJ's current licensee, walking backwards.
- JOHNSON JR, WILLIAM HKYgranted 2012-07-24cancelled 2012-08-11
Successor callsigns
Callsigns held now by people who previously held KY4WHJ.
No current licensee on record previously held this callsign.