Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9KU callsign genealogy
Currently held by ZARDECKI, GEORGE J
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 AC9KU's current licensee, walking backwards.
- ZARDECKI, GEORGE JILgranted 2017-08-18
Successor callsigns
Callsigns held now by people who previously held AC9KU.
- ZARDECKI, GEORGE JILgranted 2017-08-18