Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5MMS callsign genealogy
Currently held by Sawyers, Michael M
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 K5MMS's current licensee, walking backwards.
- Sawyers, Michael MTXgranted 2024-01-23cancelled 2024-02-13
Successor callsigns
Callsigns held now by people who previously held K5MMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5MMS, oldest first.
- BUCHANAN JR, EDWARD E CO1995-11-28 → cancelled 2007-11-29
- Sawyers, Michael M TX2024-02-13 active