Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9RON callsign genealogy
Currently held by Warren, Ronald
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 N9RON's current licensee, walking backwards.
- WARREN, RONALD AILgranted 1998-08-07cancelled 2005-03-02
Successor callsigns
Callsigns held now by people who previously held N9RON.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9RON, oldest first.
- KRUEGER, HAROLD L WI1992-12-22 → cancelled 2004-12-23
- Warren, Ronald IL2024-12-14 active