Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5KSU callsign genealogy
Currently held by NORRIS, JAMES A
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 K5KSU's current licensee, walking backwards.
- Horak, Arkady MTXgranted 2023-01-04cancelled 2025-02-08
Successor callsigns
Callsigns held now by people who previously held K5KSU.
- Horak, Arkady MTXgranted 2026-04-07
All historical holders
Every license row we've seen with the callsign K5KSU, oldest first.
- NORRIS, JAMES A OK1997-03-28 → cancelled 2009-03-31
- Horak, Arkady M TX2025-02-08 → cancelled 2026-04-07