Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW9A callsign genealogy
Currently held by NORTHERN ILLINOIS CONTESTERS
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 KW9A's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KW9A.
- STROSCHEIN, STEVEN JILgranted 2026-08-07
All historical holders
Every license row we've seen with the callsign KW9A, oldest first.
- NORTHERN ILLINOIS CONTESTERS IL2010-02-05 → cancelled 2022-02-17
- PATTON, DAVID C IL2022-03-08 active