Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5SWK callsign genealogy
Currently held by THE LEONBERGER AMATEUR RADIO GROUP
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 K5SWK's current licensee, walking backwards.
- KN4HEYcancelledTHE LEONBERGER AMATEUR RADIO GROUPFLgranted 2017-11-02cancelled 2017-12-08
Successor callsigns
Callsigns held now by people who previously held K5SWK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5SWK, oldest first.
- NONKEN, OTIS TX2006-12-15 → cancelled 2015-11-18
- THE LEONBERGER AMATEUR RADIO GROUP FL2017-12-08 active