Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7WSR callsign genealogy
Currently held by Reeder Jr, William S
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 K7WSR's current licensee, walking backwards.
- Reeder, William SWAgranted 2021-04-07cancelled 2021-04-27
Successor callsigns
Callsigns held now by people who previously held K7WSR.
- Kolstad, Jon KWAgranted 2025-08-07
All historical holders
Every license row we've seen with the callsign K7WSR, oldest first.
- Kolstad, Jon K WA2015-07-21 → cancelled 2015-10-31
- Reeder Jr, William S WA2021-04-27 active