Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MCK callsign genealogy
Currently held by WEST, ROLAND 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 K7MCK's current licensee, walking backwards.
- Koss, Michael CWAgranted 2022-03-14cancelled 2022-04-02
Successor callsigns
Callsigns held now by people who previously held K7MCK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7MCK, oldest first.
- WEST, ROLAND C OR2009-11-05 → cancelled 2022-01-25
- Koss, Michael C WA2022-04-02 active