Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4JIM callsign genealogy
Currently held by SIMPSON, JAMES 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 KY4JIM's current licensee, walking backwards.
- SIMPSON, JAMES SKYgranted 2005-06-27cancelled 2006-02-10
Successor callsigns
Callsigns held now by people who previously held KY4JIM.
No current licensee on record previously held this callsign.