Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4WDO callsign genealogy
Currently held by Outlaw, William D
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 K4WDO's current licensee, walking backwards.
- Outlaw, William DTNgranted 2011-06-14cancelled 2018-03-30
Successor callsigns
Callsigns held now by people who previously held K4WDO.
No current licensee on record previously held this callsign.