Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8ESX callsign genealogy
Currently held by MULLER, CARL L
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 K8ESX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K8ESX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8ESX, oldest first.
- MULLER, CARL L OH1991-02-26 → cancelled 2003-02-27
- VANCONANT, MICHAEL K MI2017-01-06 active