Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7DCD callsign genealogy
Currently held by MASON, ROBERT B
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 N7DCD's current licensee, walking backwards.
- KE7DFWcancelledCoos County ARESORgranted 2005-03-14cancelled 2005-08-09
Successor callsigns
Callsigns held now by people who previously held N7DCD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7DCD, oldest first.
- MASON, ROBERT B OR2003-09-11 → cancelled 2005-02-03
- Coos County ARES OR2026-04-14 active