Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA9UWS callsign genealogy
Currently held by Karkoski, David 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 WA9UWS's current licensee, walking backwards.
- Karkoski, David JWIgranted 2016-03-28cancelled 2016-04-26
Successor callsigns
Callsigns held now by people who previously held WA9UWS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA9UWS, oldest first.
- KARKOSKI, DAVID J WI1998-02-27 → cancelled 2010-03-02
- Karkoski, David J WI2016-04-26 active