Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1MCM callsign genealogy
Currently held by Metzger, Charles
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 K1MCM's current licensee, walking backwards.
- Metzger, CharlesCTgranted 2017-03-02cancelled 2017-03-20
Successor callsigns
Callsigns held now by people who previously held K1MCM.
- MERCER, MARK CFLgranted 2021-03-20
All historical holders
Every license row we've seen with the callsign K1MCM, oldest first.
- MERCER, MARK C WA2011-02-08 → cancelled 2011-03-01
- Metzger, Charles CT2017-03-20 active