Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO3Q callsign genealogy
Currently held by WARING, MALCOLM M
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 KO3Q's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KO3Q.
- Carroll, James SVAgranted 2022-08-16
All historical holders
Every license row we've seen with the callsign KO3Q, oldest first.
- CARROLL, JAMES S VA1997-09-03 → cancelled 2002-08-31
- WARING, MALCOLM M PA2023-09-20 active