Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD6DJ callsign genealogy
Currently held by JOHNSTON, DAVID A
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 KD6DJ's current licensee, walking backwards.
- JOHNSTON, DAVID ACAgranted 2015-02-10cancelled 2022-03-08
Successor callsigns
Callsigns held now by people who previously held KD6DJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD6DJ, oldest first.
- BLANCHARD, CHARLES G CA1997-08-22 → cancelled 2009-08-25
- JOHNSTON, DAVID A CA2022-03-08 active