Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NW9U callsign genealogy
Currently held by Poffenbarger, Harry A
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 NW9U's current licensee, walking backwards.
- Rutowski, JoshuaILgranted 2025-04-03cancelled 2025-05-13
Successor callsigns
Callsigns held now by people who previously held NW9U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NW9U, oldest first.
- Poffenbarger, Harry A IL2013-01-11 → cancelled 2025-03-29
- Rutowski, Joshua IL2025-05-13 active