Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7BTN callsign genealogy
Currently held by HYMER, JOHN W
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 K7BTN's current licensee, walking backwards.
- Nguyen, Brandon TNVgranted 2021-03-02cancelled 2021-03-26
Successor callsigns
Callsigns held now by people who previously held K7BTN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7BTN, oldest first.
- HYMER, JOHN W WA2006-01-30 → cancelled 2018-05-01
- Nguyen, Brandon T NV2021-03-26 active