Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9CRS callsign genealogy
Currently held by CRS Club
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 W9CRS's current licensee, walking backwards.
- KE9CUGcancelledWindy City Amateur Radio SocietyILgranted 2025-03-11cancelled 2025-04-01
Successor callsigns
Callsigns held now by people who previously held W9CRS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9CRS, oldest first.
- CRS Club IL2002-11-05 → cancelled 2014-11-06
- Windy City Amateur Radio Society IL2025-04-01 active