Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KS6RFI callsign genealogy
Currently held by SOUTHWORTH, DAVID F
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 KS6RFI's current licensee, walking backwards.
- Southworth, David FCAgranted 2006-09-26cancelled 2006-10-14
Successor callsigns
Callsigns held now by people who previously held KS6RFI.
No current licensee on record previously held this callsign.