Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9ZC callsign genealogy
Currently held by YOUNG, MICHAEL H
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 K9ZC's current licensee, walking backwards.
- KC9EXMcancelledNAQRO-CENTRAL DIVISION CLUBILgranted 2003-11-03cancelled 2003-11-22
Successor callsigns
Callsigns held now by people who previously held K9ZC.
- YOUNG, MICHAEL HILgranted 2011-03-26cancelled 2023-05-26
All historical holders
Every license row we've seen with the callsign K9ZC, oldest first.
- YOUNG, MICHAEL H IL1999-12-10 → cancelled 2001-05-25
- NAQRO-CENTRAL DIVISION CLUB IL2023-11-14 active