Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7KFS callsign genealogy
Currently held by RALSTON, SHELDON D
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 K7KFS's current licensee, walking backwards.
- sterling, kevin fCAgranted 2022-02-07cancelled 2022-04-22
Successor callsigns
Callsigns held now by people who previously held K7KFS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7KFS, oldest first.
- RALSTON, SHELDON D WA2008-01-03 → cancelled 2020-03-10
- Sterling, Kevin F CA2022-04-22 active