Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9MTM callsign genealogy
Currently held by MC ANDREWS JR, MICHAEL T
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 K9MTM's current licensee, walking backwards.
- HESSE, ERIC SFLgranted 2014-10-14cancelled 2020-10-03
Successor callsigns
Callsigns held now by people who previously held K9MTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9MTM, oldest first.
- MC ANDREWS JR, MICHAEL T OK2003-06-10 → cancelled 2015-06-11
- Hesse, Eric S TN2020-10-03 active