Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9MOM callsign genealogy
Currently held by Harms, Adana O
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 KA9MOM's current licensee, walking backwards.
- Harms, Adana OILgranted 2024-05-08cancelled 2024-08-09
Successor callsigns
Callsigns held now by people who previously held KA9MOM.
- Froelich, Robert WILgranted 2024-08-30
All historical holders
Every license row we've seen with the callsign KA9MOM, oldest first.
- Froelich, Robert W IL2008-02-29 → cancelled 2014-11-04
- Harms, Adana O IL2024-08-09 active