Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7MRC callsign genealogy
Currently held by Maltby Radio Club
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 W7MRC's current licensee, walking backwards.
- Mason, Douglas GMTgranted 2014-04-01cancelled 2019-02-02
Successor callsigns
Callsigns held now by people who previously held W7MRC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7MRC, oldest first.
- Maltby Radio Club WA2006-01-10 → cancelled 2018-01-11
- Mason, Douglas G MT2019-02-02 active