Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9FR callsign genealogy
Currently held by Heidemann, Alfred L
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 AC9FR's current licensee, walking backwards.
- Heidemann, Alfred LWIgranted 2013-05-13cancelled 2013-07-24
Successor callsigns
Callsigns held now by people who previously held AC9FR.
No current licensee on record previously held this callsign.