Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9NH callsign genealogy
Currently held by Koppenhaver, Jeremy A
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 AC9NH's current licensee, walking backwards.
- Koppenhaver, Jeremy AILgranted 2015-06-24cancelled 2016-02-01
Successor callsigns
Callsigns held now by people who previously held AC9NH.
No current licensee on record previously held this callsign.