Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4MDM callsign genealogy
Currently held by Bjelland, David
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 KX4MDM's current licensee, walking backwards.
- Bjelland, DavidFLgranted 2021-12-14cancelled 2022-02-01
Successor callsigns
Callsigns held now by people who previously held KX4MDM.
No current licensee on record previously held this callsign.