Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SFT callsign genealogy
Currently held by Frizen, Scott A
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 K4SFT's current licensee, walking backwards.
- Frizen, Scott AVAgranted 2019-08-15cancelled 2019-09-17
Successor callsigns
Callsigns held now by people who previously held K4SFT.
No current licensee on record previously held this callsign.