Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MDP callsign genealogy
Currently held by Patton, Michael
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 K4MDP's current licensee, walking backwards.
- Patton, MichaelTNgranted 2015-11-18cancelled 2016-12-09
Successor callsigns
Callsigns held now by people who previously held K4MDP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MDP, oldest first.
- LAWRENCE, THOMAS R TN1996-10-08 → cancelled 2008-10-09
- Patton, Michael TN2016-12-09 active