Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF6BTO callsign genealogy
Currently held by LaFever, ALAN
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 KF6BTO's current licensee, walking backwards.
- TONNELIER, BRUNOCAgranted 2026-01-13cancelled 2026-01-31
Successor callsigns
Callsigns held now by people who previously held KF6BTO.
- LaFever, ALANAZgranted 2024-11-08
All historical holders
Every license row we've seen with the callsign KF6BTO, oldest first.
- LaFever, ALAN CA2005-12-14 → cancelled 2014-04-25
- TONNELIER, BRUNO CA2026-01-31 active