Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7MJS callsign genealogy
Currently held by Cox, Frederick J
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 KD7MJS's current licensee, walking backwards.
- Cox, Frederick JWAgranted 1997-03-26cancelled 2001-03-21
Successor callsigns
Callsigns held now by people who previously held KD7MJS.
No current licensee on record previously held this callsign.