Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4S callsign genealogy
Currently held by SHEPHERD, JOSEPH E
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 KJ4S's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KJ4S.
No current licensee on record previously held this callsign.