Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS9IDG callsign genealogy
Currently held by Southwestern Illinois Digital Group
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 WS9IDG's current licensee, walking backwards.
- KD9JNBcancelledSouthwestern Illinois Digital GroupILgranted 2017-10-23cancelled 2017-11-21
Successor callsigns
Callsigns held now by people who previously held WS9IDG.
No current licensee on record previously held this callsign.