Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9BTX callsign genealogy
Currently held by SLAGA, EDWARD J
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 K9BTX's current licensee, walking backwards.
- FALADA, MARTINILgranted 2023-05-09cancelled 2023-05-27
Successor callsigns
Callsigns held now by people who previously held K9BTX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9BTX, oldest first.
- SLAGA, EDWARD J IL1998-07-22 → cancelled 2010-07-23
- FALADA, MARTIN IL2023-05-27 active