Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF0O callsign genealogy
Currently held by Hornbaker, Richard 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 KF0O's current licensee, walking backwards.
- Hornbaker, Richard DAZgranted 2007-09-21cancelled 2014-01-07
Successor callsigns
Callsigns held now by people who previously held KF0O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF0O, oldest first.
- GAGNER, PHILIP A VA2001-06-01 → cancelled 2013-06-04
- Hornbaker, Richard D AZ2024-01-03 active