Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9XS callsign genealogy
Currently held by Clower, Stephen
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 AC9XS's current licensee, walking backwards.
- Clower, StephenINgranted 2020-06-29cancelled 2020-10-29
Successor callsigns
Callsigns held now by people who previously held AC9XS.
No current licensee on record previously held this callsign.