Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5OQF callsign genealogy
Currently held by YSTESUND, KENNETH 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 W5OQF's current licensee, walking backwards.
- YSTESUND, KENNETH JNMgranted 2017-10-26cancelled 2021-02-27
Successor callsigns
Callsigns held now by people who previously held W5OQF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5OQF, oldest first.
- BROWN, DAVID K TX1997-02-10 → cancelled 2009-02-11
- YSTESUND, KENNETH J NM2021-02-27 active