Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9GEM callsign genealogy
Currently held by Kyser, Austin M
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 K9GEM's current licensee, walking backwards.
- Muller, Gerald ETXgranted 2010-02-11cancelled 2015-01-23
Successor callsigns
Callsigns held now by people who previously held K9GEM.
- Kyser, Austin MALgranted 2010-07-20cancelled 2011-02-23
All historical holders
Every license row we've seen with the callsign K9GEM, oldest first.
- Kyser, Austin M AL2010-04-28 → cancelled 2010-07-20
- Muller, Gerald E TX2024-12-28 active