Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ7D callsign genealogy
Currently held by FRANK, DOUGLAS F
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 KJ7D's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KJ7D.
No current licensee on record previously held this callsign.