Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7WSF callsign genealogy
Currently held by Fraser, William 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 K7WSF's current licensee, walking backwards.
- Fraser, William SUTgranted 2017-02-16cancelled 2017-05-06
Successor callsigns
Callsigns held now by people who previously held K7WSF.
No current licensee on record previously held this callsign.