Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC0JKU callsign genealogy
Currently held by Rung, Shawn M
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 KC0JKU's current licensee, walking backwards.
- THIEMAN, SHELLIE JMOgranted 2017-04-11cancelled 2017-05-05
Successor callsigns
Callsigns held now by people who previously held KC0JKU.
- Rung, Shawn MMNgranted 2022-04-12
All historical holders
Every license row we've seen with the callsign KC0JKU, oldest first.
- Rung, Shawn M MN2000-12-27 → cancelled 2002-07-09
- THIEMAN, SHELLIE J MO2017-05-05 active