Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD8DQO callsign genealogy
Currently held by Unterkircher, Sharon J
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 WD8DQO's current licensee, walking backwards.
- DRINNIN, HARRY LMNgranted 2016-06-24cancelled 2017-02-11
Successor callsigns
Callsigns held now by people who previously held WD8DQO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD8DQO, oldest first.
- Unterkircher, Sharon J MN2008-01-08 → cancelled 2015-02-22
- DRINNIN, HARRY L SD2017-02-11 active