Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0WU callsign genealogy
Currently held by DAVIS, DONALD R
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 W0WU's current licensee, walking backwards.
- CARLSON, MATTHEWMNgranted 2025-03-06cancelled 2026-04-28
Successor callsigns
Callsigns held now by people who previously held W0WU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0WU, oldest first.
- DAVIS, DONALD R KS1992-03-24 → cancelled 1997-12-26
- TANNER, EARL E KS2014-01-11 → cancelled 2026-04-10
- CARLSON, MATTHEW MN2026-04-28 active