Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7DMO callsign genealogy
Currently held by DANIELS, HARRY S
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 W7DMO's current licensee, walking backwards.
- Olsen, Doreen MAZgranted 2018-01-08cancelled 2018-11-02
Successor callsigns
Callsigns held now by people who previously held W7DMO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7DMO, oldest first.
- DANIELS, HARRY S AZ1992-10-20 → cancelled 2004-10-21
- Olsen, Doreen M AZ2018-11-02 active