Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4AOO callsign genealogy
Currently held by Stone, Billy J
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 K4AOO's current licensee, walking backwards.
- Stone, Billy JFLgranted 2010-03-25cancelled 2017-07-08
Successor callsigns
Callsigns held now by people who previously held K4AOO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4AOO, oldest first.
- WEILAND, PETER M GA2004-01-08 → cancelled 2016-02-09
- Stone, Billy J FL2017-07-08 active