Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3DU callsign genealogy
Currently held by HANSON, CHARLES W
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 K3DU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K3DU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3DU, oldest first.
- HANSON, CHARLES W MD2008-02-29 → cancelled 2020-05-22
- Dubitsky, Victor K MD2020-06-20 active