Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM1CHL callsign genealogy
Currently held by Gebhardt, Michael
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 KM1CHL's current licensee, walking backwards.
- Gebhardt, MichaelCAgranted 2021-07-21cancelled 2021-08-27
Successor callsigns
Callsigns held now by people who previously held KM1CHL.
No current licensee on record previously held this callsign.