Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ9MCK callsign genealogy
Currently held by KOTWAL, 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 KZ9MCK's current licensee, walking backwards.
- KOTWAL, MICHAEL CTXgranted 2022-06-03cancelled 2022-06-22
Successor callsigns
Callsigns held now by people who previously held KZ9MCK.
No current licensee on record previously held this callsign.