Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4ES callsign genealogy
Currently held by Bergmeier, Franz 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 KX4ES's current licensee, walking backwards.
- Bergmeier, Franz SVAgranted 2015-07-10cancelled 2017-07-20
Successor callsigns
Callsigns held now by people who previously held KX4ES.
No current licensee on record previously held this callsign.