Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9CS callsign genealogy
Currently held by Conn, Steven M
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 N9CS's current licensee, walking backwards.
- Ricca, Todd DILgranted 2023-01-06cancelled 2023-08-25
Successor callsigns
Callsigns held now by people who previously held N9CS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9CS, oldest first.
- Conn, Steven M IL2011-03-15 → cancelled 2023-07-12
- Ricca, Todd D IL2023-08-25 active