Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU9I callsign genealogy
Currently held by MITCHELL, ROBERT W
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 KU9I's current licensee, walking backwards.
- MITCHELL, ROBERT WILgranted 2007-10-23cancelled 2015-08-21
Successor callsigns
Callsigns held now by people who previously held KU9I.
- PFEIFFER, FRED MMNgranted 2016-08-08
All historical holders
Every license row we've seen with the callsign KU9I, oldest first.
- Ivy Tech Northeast Amateur Radio Club IN2009-07-21 → cancelled 2013-08-01
- MITCHELL, ROBERT W IL2025-06-25 active