Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MMD callsign genealogy
Currently held by DOUGLAS, MARION
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 K7MMD's current licensee, walking backwards.
- DOUGLAS, MARIONWAgranted 2019-06-25cancelled 2020-01-14
Successor callsigns
Callsigns held now by people who previously held K7MMD.
No current licensee on record previously held this callsign.