Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT9W callsign genealogy
Currently held by Mickelson, Kenneth W
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 WT9W's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WT9W.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT9W, oldest first.
- Fisher, Michael S PA2004-02-26 → cancelled 2016-05-04
- Mickelson, Kenneth W WI2026-07-31 active