Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WY7DF callsign genealogy
Currently held by Frick, Douglas C
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 WY7DF's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WY7DF.
No current licensee on record previously held this callsign.