Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3DUH callsign genealogy
Currently held by Sharon K Dobson Memorial Club
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 K3DUH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K3DUH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3DUH, oldest first.
- Dobson, Sharon K MD2009-01-29 → cancelled 2018-01-14
- Sharon K Dobson Memorial Club MD2020-02-14 active