Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4XD callsign genealogy
Currently held by WHITWORTH, SAM C
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 K4XD's current licensee, walking backwards.
- Archer Jr, RowlandNCgranted 2006-06-14cancelled 2006-07-18
Successor callsigns
Callsigns held now by people who previously held K4XD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4XD, oldest first.
- WHITWORTH, SAM C SC1996-08-01 → cancelled 2003-09-01
- Archer Jr, Rowland NC2026-05-06 active