Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ6KK callsign genealogy
Currently held by RUPNIK, CURTIS R
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 KJ6KK's current licensee, walking backwards.
- King, Jim BCAgranted 2012-07-19cancelled 2015-10-20
Successor callsigns
Callsigns held now by people who previously held KJ6KK.
- RUPNIK, CURTIS RMTgranted 2009-02-05cancelled 2021-02-06
All historical holders
Every license row we've seen with the callsign KJ6KK, oldest first.
- King, Jim B CA2025-09-03 active
- RUPNIK, CURTIS R— → cancelled 1998-04-03