Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3DMH callsign genealogy
Currently held by HART, DOUGLAS M
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 W3DMH's current licensee, walking backwards.
- Handley, David MMDgranted 2004-03-19cancelled 2004-04-10
Successor callsigns
Callsigns held now by people who previously held W3DMH.
- HART, DOUGLAS MMDgranted 2020-01-22
All historical holders
Every license row we've seen with the callsign W3DMH, oldest first.
- HART, DOUGLAS M MD1999-06-30 → cancelled 2000-04-17
- Handley, David M MD2025-05-09 active