Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4EVV callsign genealogy
Currently held by Libbert, Keith R
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 K4EVV's current licensee, walking backwards.
- Libbert, Keith RKYgranted 2020-06-30cancelled 2020-07-18
Successor callsigns
Callsigns held now by people who previously held K4EVV.
No current licensee on record previously held this callsign.