Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9OI callsign genealogy
Currently held by HEININGER, STEVEN T
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 N9OI's current licensee, walking backwards.
- Heininger, Steven TINgranted 2000-08-26cancelled 2003-04-29
Successor callsigns
Callsigns held now by people who previously held N9OI.
No current licensee on record previously held this callsign.