Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KG4BTK callsign genealogy
Currently held by BREIDT, FREDERICK
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 KG4BTK's current licensee, walking backwards.
- Harris, JandFLgranted 2024-06-14cancelled 2024-07-02
Successor callsigns
Callsigns held now by people who previously held KG4BTK.
All historical holders
Every license row we've seen with the callsign KG4BTK, oldest first.
- BREIDT, FREDERICK NC1999-02-01 → cancelled 2002-10-10
- Harris, Jand FL2024-07-02 → cancelled 2024-11-30