Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI9Z callsign genealogy
Currently held by BUTLER, DONALD 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 AI9Z's current licensee, walking backwards.
- Belany, Joseph SWIgranted 2003-07-15cancelled 2006-09-19
Successor callsigns
Callsigns held now by people who previously held AI9Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AI9Z, oldest first.
- BUTLER, DONALD W IL1994-05-24 → cancelled 2006-05-25
- Belany, Joseph S WI2026-07-07 active