Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1FSR callsign genealogy
Currently held by Semien, Marcel S
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 K1FSR's current licensee, walking backwards.
- Semien, Marcel SCAgranted 2020-04-08cancelled 2020-04-28
Successor callsigns
Callsigns held now by people who previously held K1FSR.
No current licensee on record previously held this callsign.