Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5TOT callsign genealogy
Currently held by Zemke, Scott 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 K5TOT's current licensee, walking backwards.
- Zemke, Scott AARgranted 2024-02-03cancelled 2024-03-09
Successor callsigns
Callsigns held now by people who previously held K5TOT.
- Brown, John SARgranted 2018-12-28
All historical holders
Every license row we've seen with the callsign K5TOT, oldest first.
- Brown, John S AR2017-09-15 → cancelled 2018-12-28
- Zemke, Scott A AR2024-03-09 active