Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9ZW callsign genealogy
Currently held by BREWER, COURTLAND 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 W9ZW's current licensee, walking backwards.
- Smigelski, ThomasILgranted 2016-12-27cancelled 2017-12-22
Successor callsigns
Callsigns held now by people who previously held W9ZW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9ZW, oldest first.
- BREWER, COURTLAND L IN2006-11-14 → cancelled 2015-12-01
- Smigelski, Thomas IL2017-12-22 active