Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7DMR callsign genealogy
Currently held by Royer, Douglas 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 K7DMR's current licensee, walking backwards.
- Royer, Douglas MIDgranted 2010-05-05cancelled 2010-07-10
Successor callsigns
Callsigns held now by people who previously held K7DMR.
No current licensee on record previously held this callsign.