Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA6MCK callsign genealogy
Currently held by Koch, Michael C
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 KA6MCK's current licensee, walking backwards.
- Koch, Michael CCAgranted 2018-09-04cancelled 2019-09-21
Successor callsigns
Callsigns held now by people who previously held KA6MCK.
- Koch, Michael CCAgranted 2020-02-28