Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4DFL callsign genealogy
Currently held by Cooper, David R
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 KN4DFL's current licensee, walking backwards.
- COOPER JR, DAVID RVAgranted 2020-12-02cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held KN4DFL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN4DFL, oldest first.
- Cooper, David R VA2017-05-15 → cancelled 2020-07-29
- COOPER JR, DAVID R VA2020-12-29 active