Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JIS callsign genealogy
Currently held by Swiney, Jerry L
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 K4JIS's current licensee, walking backwards.
- Swiney, Jerry LVAgranted 2006-12-19cancelled 2011-04-19
Successor callsigns
Callsigns held now by people who previously held K4JIS.
No current licensee on record previously held this callsign.