Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DMD callsign genealogy
Currently held by DAVIS, DONALD 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 W4DMD's current licensee, walking backwards.
- MC DONALD, DANIEL LFLgranted 2015-11-12cancelled 2015-12-05
Successor callsigns
Callsigns held now by people who previously held W4DMD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4DMD, oldest first.
- DAVIS, DONALD M NC2000-10-24 → cancelled 2012-10-25
- MC DONALD, DANIEL L WI2026-04-14 active