Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI9N callsign genealogy
Currently held by KRUEGER, ROBERT B
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 KI9N's current licensee, walking backwards.
- MILLER, NEAL MWIgranted 2017-04-06cancelled 2018-07-06
Successor callsigns
Callsigns held now by people who previously held KI9N.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KI9N, oldest first.
- KRUEGER, ROBERT B IL2006-02-14 → cancelled 2018-05-03
- MILLER, NEAL M WI2018-07-06 active