Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4KFR callsign genealogy
Currently held by Renz, Kevin
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 W4KFR's current licensee, walking backwards.
- Renz, KevinWAgranted 2024-07-16cancelled 2024-08-27
Successor callsigns
Callsigns held now by people who previously held W4KFR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4KFR, oldest first.
- RANNEY, JAMES F KY2005-01-25 → cancelled 2017-03-11
- Renz, Kevin WA2024-08-27 active