Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9JC callsign genealogy
Currently held by Seifert, Samuel O
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 AC9JC's current licensee, walking backwards.
- Seifert, Samuel OINgranted 2014-02-07cancelled 2014-08-01
Successor callsigns
Callsigns held now by people who previously held AC9JC.
- Seifert, Samuel OINgranted 2026-04-28