Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CHX callsign genealogy
Currently held by Kacher, Michael H
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 K4CHX's current licensee, walking backwards.
- Kacher, Michael HNCgranted 2025-01-07cancelled 2025-02-14
Successor callsigns
Callsigns held now by people who previously held K4CHX.
- SEALE, WILLIAM EMDgranted 2020-04-21
All historical holders
Every license row we've seen with the callsign K4CHX, oldest first.
- SEALE, WILLIAM E MD2018-11-14 → cancelled 2020-04-21
- Kacher, Michael H NC2025-02-14 active