Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6FIO callsign genealogy
Currently held by O LEARY, FRANCIS I
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 KF6FIO's current licensee, walking backwards.
- O LEARY, FRANCIS ICAgranted 2006-05-20cancelled 2016-01-08
Successor callsigns
Callsigns held now by people who previously held KF6FIO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF6FIO, oldest first.
- DREXEL II, GERHARD B CA1996-07-26 → cancelled 2008-07-29
- O LEARY, FRANCIS I CA2016-01-08 active