Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1DEN callsign genealogy
Currently held by Nelson, Douglas E
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 N1DEN's current licensee, walking backwards.
- Cargill, Dennis GMAgranted 2020-02-13cancelled 2020-03-03
Successor callsigns
Callsigns held now by people who previously held N1DEN.
- Nelson, Douglas EMEgranted 2026-04-10
All historical holders
Every license row we've seen with the callsign N1DEN, oldest first.
- Nelson, Douglas E ME2010-05-07 → cancelled 2016-05-03
- Cargill, Dennis G MA2020-03-03 active