Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7DCM callsign genealogy
Currently held by Mullen, Dennis C
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 N7DCM's current licensee, walking backwards.
- Mullen, Dennis CCAgranted 2010-06-08cancelled 2014-10-11
Successor callsigns
Callsigns held now by people who previously held N7DCM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7DCM, oldest first.
- NONNEMACHER, DOROTHY M DE1996-05-08 → cancelled 2008-05-09
- Mullen, Dennis C UT2024-08-14 active