Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI9OZ callsign genealogy
Currently held by Ozaukee Amateur Radio Emergency Services
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 WI9OZ's current licensee, walking backwards.
- KD9MEIcancelledOzaukee Amateur Radio Emergency ServicesWIgranted 2018-12-18cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held WI9OZ.
No current licensee on record previously held this callsign.