Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7DDF callsign genealogy
Currently held by Filer, Doug D
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 N7DDF's current licensee, walking backwards.
- Filer, Doug DWAgranted 2018-08-21cancelled 2018-11-17
Successor callsigns
Callsigns held now by people who previously held N7DDF.
No current licensee on record previously held this callsign.