Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4WPD callsign genealogy
Currently held by Douglas, William P
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 K4WPD's current licensee, walking backwards.
- Douglas, William PALgranted 2003-04-07cancelled 2004-02-24
Successor callsigns
Callsigns held now by people who previously held K4WPD.
No current licensee on record previously held this callsign.