Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WZ9I callsign genealogy
Currently held by STEFFL, JOHN L
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 WZ9I's current licensee, walking backwards.
- Steffl, John LWIgranted 2000-09-13cancelled 2005-08-23
Successor callsigns
Callsigns held now by people who previously held WZ9I.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WZ9I, oldest first.
- PRESCOTT, MICHAEL W IL1991-02-26 → cancelled 2003-02-27
- STEFFL, JOHN L GA2025-07-16 active