Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8FO callsign genealogy
Currently held by TROY, ROGER C
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 K8FO's current licensee, walking backwards.
- MC DONALD, ANDREW WWAgranted 2018-05-01cancelled 2019-03-12
Successor callsigns
Callsigns held now by people who previously held K8FO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8FO, oldest first.
- TROY, ROGER C FL2006-10-17 → cancelled 2019-02-12
- MC DONALD, ANDREW W OH2019-03-12 active