Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9EMA callsign genealogy
Currently held by Mahoney, Christopher G
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 KD9EMA's current licensee, walking backwards.
- Nicholson, Bryan SILgranted 2025-06-17cancelled 2025-08-01
Successor callsigns
Callsigns held now by people who previously held KD9EMA.
- Mahoney, Chris GALgranted 2025-08-16
All historical holders
Every license row we've seen with the callsign KD9EMA, oldest first.
- Mahoney, Christopher G IL2015-08-25 → cancelled 2015-09-18
- Nicholson, Bryan S IL2025-08-01 active