Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA0DZF callsign genealogy
Currently held by Schmidt, Michael 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 WA0DZF's current licensee, walking backwards.
- Schmidt, Michael WFLgranted 2021-02-25cancelled 2021-03-23
Successor callsigns
Callsigns held now by people who previously held WA0DZF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA0DZF, oldest first.
- HATFIELD SR, ARTHUR S IA1997-11-18 → cancelled 2009-11-19
- Schmidt, Michael W FL2021-03-23 active