Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4WXR callsign genealogy
Currently held by Uthoff, Ryan 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 KK4WXR's current licensee, walking backwards.
- Uthoff, Ryan WTNgranted 2012-08-20cancelled 2013-01-29
Successor callsigns
Callsigns held now by people who previously held KK4WXR.
- Uthoff, Ryan WKYgranted 2023-10-27