Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9IFX callsign genealogy
Currently held by Ganser, John
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 K9IFX's current licensee, walking backwards.
- Ganser, JohnINgranted 2017-09-11cancelled 2017-09-29
Successor callsigns
Callsigns held now by people who previously held K9IFX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9IFX, oldest first.
- GANSER, WILLIAM J IN1996-04-04 → cancelled 2008-04-05
- Ganser, John IN2017-09-29 active