Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB9DZN callsign genealogy
Currently held by BOJANOWSKI, DONALD E
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 WB9DZN's current licensee, walking backwards.
- BOJANOWSKI, DONALD EILgranted 2017-10-05cancelled 2017-10-24
Successor callsigns
Callsigns held now by people who previously held WB9DZN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB9DZN, oldest first.
- BOJANOWSKI, DONALD E IL1998-02-24 → cancelled 2010-02-25
- BOJANOWSKI, DONALD E IL2017-10-24 active