Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE4MJD callsign genealogy
Currently held by WALLES, LARRY D
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 KE4MJD's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KE4MJD.
- DZIUBA, MICHAEL JTNgranted 2021-09-11cancelled 2025-06-27
All historical holders
Every license row we've seen with the callsign KE4MJD, oldest first.
- WALLES, LARRY D MO2003-03-06 → cancelled 2014-06-24
- DZIUBA, MICHAEL J TN2020-09-18 → cancelled 2021-09-11