Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1FSU callsign genealogy
Currently held by SUMMEY, JASON L
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 K1FSU's current licensee, walking backwards.
- SUMMEY, JASON LNCgranted 2019-08-02cancelled 2022-07-19
Successor callsigns
Callsigns held now by people who previously held K1FSU.
- SUMMEY, JASON LNCgranted 2019-08-02cancelled 2022-07-19
All historical holders
Every license row we've seen with the callsign K1FSU, oldest first.
- BACON JR, FREDERIC S MA1995-01-10 → cancelled 2007-01-11
- SUMMEY, JASON L NC2017-11-14 → cancelled 2019-08-02