Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3DUH 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 W3DUH's current licensee, walking backwards.
- KC3MPYcancelledSharon K Dobson Memorial ClubMDgranted 2018-12-18cancelled 2019-05-07
Successor callsigns
Callsigns held now by people who previously held W3DUH.
- K3DUHactiveSharon K Dobson Memorial ClubMDgranted 2020-02-14