Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3DMM callsign genealogy
Currently held by Magdule, Dennis M
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 K3DMM's current licensee, walking backwards.
- Magdule, Dennis MPAgranted 2020-08-20cancelled 2020-09-09
Successor callsigns
Callsigns held now by people who previously held K3DMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3DMM, oldest first.
- Mueller, Donna M PA2007-07-24 → cancelled 2019-07-25
- Magdule, Dennis M PA2020-09-09 active