Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5MJA callsign genealogy
Currently held by Amerson, Michael J
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 K5MJA's current licensee, walking backwards.
- Amerson, Michael JtXgranted 2024-05-31cancelled 2024-07-02
Successor callsigns
Callsigns held now by people who previously held K5MJA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5MJA, oldest first.
- LOOK, FRED F TX2007-12-15 → cancelled 2020-01-31
- Amerson, Michael J TX2024-07-02 active