Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5DMC callsign genealogy
Currently held by CHRISTENSEN, DOUG 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 N5DMC's current licensee, walking backwards.
- GRIFFETH JR, JAMES CTXgranted 2018-06-12cancelled 2021-07-24
Successor callsigns
Callsigns held now by people who previously held N5DMC.
- CHRISTENSEN, DOUG MTXgranted 2019-07-02
All historical holders
Every license row we've seen with the callsign N5DMC, oldest first.
- HEETER, JAMES F TX1998-07-15 → cancelled 2010-07-16
- CHRISTENSEN, DOUG M TX2016-08-13 → cancelled 2019-07-02
- GRIFFETH JR, JAMES C TX2021-07-24 active