Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9JK callsign genealogy
Currently held by KMIEC, JEFFREY 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 N9JK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N9JK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9JK, oldest first.
- BAUCH, GRANT F WI1997-10-06 → cancelled 1998-06-19
- KMIEC, JEFFREY E IL2017-11-01 active