Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN7F callsign genealogy
Currently held by HENNESSY, JOHN W
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 KN7F's current licensee, walking backwards.
- Cook, Stephen RWAgranted 2003-07-18cancelled 2007-07-24
Successor callsigns
Callsigns held now by people who previously held KN7F.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN7F, oldest first.
- HENNESSY, JOHN W AZ1995-06-15 → cancelled 2007-06-16
- Cook, Stephen R WA2017-06-20 active