Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7MMM callsign genealogy
Currently held by SAWYER, MIKE
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 KC7MMM's current licensee, walking backwards.
- SAWYER, MIKEUTgranted 2017-03-25cancelled 2019-09-21
Successor callsigns
Callsigns held now by people who previously held KC7MMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC7MMM, oldest first.
- HARRIS, ROSEMARY AZ2005-05-05 → cancelled 2012-06-28
- SAWYER, MIKE UT2019-09-21 active