Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MTO callsign genealogy
Currently held by COLLINS, ALBERT F
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 K4MTO's current licensee, walking backwards.
- Odom, Michael TTNgranted 2020-03-20cancelled 2020-09-29
Successor callsigns
Callsigns held now by people who previously held K4MTO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MTO, oldest first.
- COLLINS, ALBERT F FL1987-12-08 → cancelled 1999-12-09
- Odom, Michael T TN2020-09-29 active