Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CM callsign genealogy
Currently held by MILLS JR, CHARLES W
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 K4CM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4CM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4CM, oldest first.
- MILLS JR, CHARLES W TN2006-08-08 → cancelled 2015-03-25
- McKnelly, Darryl W SC2017-04-14 active