Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7SIM callsign genealogy
Currently held by Shelton, William 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 K7SIM's current licensee, walking backwards.
- SHELTON, WILLIAM DWAgranted 1998-02-09cancelled 2003-07-15
Successor callsigns
Callsigns held now by people who previously held K7SIM.
No current licensee on record previously held this callsign.