Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7DEF callsign genealogy
Currently held by FILLIS, DAVID 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 K7DEF's current licensee, walking backwards.
- FILLIS, DAVID ECAgranted 1998-09-30cancelled 2001-05-25
Successor callsigns
Callsigns held now by people who previously held K7DEF.
No current licensee on record previously held this callsign.