Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4QXP callsign genealogy
Currently held by Roberts, 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 K4QXP's current licensee, walking backwards.
- Roberts, William HFLgranted 2016-07-19cancelled 2017-12-19
Successor callsigns
Callsigns held now by people who previously held K4QXP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4QXP, oldest first.
- WOODY, WILLIAM E WA1997-04-16 → cancelled 2009-04-17
- Roberts, William H FL2017-12-19 active