Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK9MM callsign genealogy
Currently held by Moegenburg, Michael 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 KK9MM's current licensee, walking backwards.
- Moegenburg, Michael WWIgranted 2024-04-11cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held KK9MM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK9MM, oldest first.
- CALOS, CARL D NV2007-08-29 → cancelled 2019-10-22
- Moegenburg, Michael W WI2025-12-09 active