Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4WKH callsign genealogy
Currently held by SHACKELFORD, ROBERT M
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 K4WKH's current licensee, walking backwards.
- Hunter, Wilson KGAgranted 2021-02-23cancelled 2021-03-16
Successor callsigns
Callsigns held now by people who previously held K4WKH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4WKH, oldest first.
- SHACKELFORD, ROBERT M VA1996-04-05 → cancelled 2002-10-10
- Hunter, Wilson K GA2021-03-16 active