Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7CJD callsign genealogy
Currently held by Clark Jr, John 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 K7CJD's current licensee, walking backwards.
- Clark Jr, John DWAgranted 2016-03-15cancelled 2016-08-06
Successor callsigns
Callsigns held now by people who previously held K7CJD.
No current licensee on record previously held this callsign.