Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5MDJ callsign genealogy
Currently held by Jackson, Matt
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 K5MDJ's current licensee, walking backwards.
- Jackson, Matthew DARgranted 2019-12-12cancelled 2020-03-03
Successor callsigns
Callsigns held now by people who previously held K5MDJ.
- Jackson, MattARgranted 2020-07-21