Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA9SN callsign genealogy
Currently held by JACOBSON, ROBERT E
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 AA9SN's current licensee, walking backwards.
- Novinger, Scott CINgranted 2010-06-10cancelled 2015-12-05
Successor callsigns
Callsigns held now by people who previously held AA9SN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA9SN, oldest first.
- JACOBSON, ROBERT E IL1996-06-06 → cancelled 2003-12-11
- Novinger, Scott C IN2025-12-02 active