Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9BTU callsign genealogy
Currently held by Heller, Scott R
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 K9BTU's current licensee, walking backwards.
- HELLER, SCOTT RCAgranted 2013-08-03cancelled 2022-04-19
Successor callsigns
Callsigns held now by people who previously held K9BTU.
- KESLER, DICK LFLgranted 2018-12-28
All historical holders
Every license row we've seen with the callsign K9BTU, oldest first.
- KESLER, DICK L FL2014-05-02 → cancelled 2018-12-28
- Heller, Scott R CA2022-04-19 active