Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9CI callsign genealogy
Currently held by Kohler, Jeffrey R
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 AC9CI's current licensee, walking backwards.
- Kohler, Jeffrey RWIgranted 2011-12-15cancelled 2012-05-22
Successor callsigns
Callsigns held now by people who previously held AC9CI.
- Kohler, Jeffrey RWIgranted 2012-06-16cancelled 2024-06-18