Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9AJC callsign genealogy
Currently held by CERMAK, ALLAN 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 K9AJC's current licensee, walking backwards.
- CERMAK, ALLAN JILgranted 2020-03-16cancelled 2021-02-23
Successor callsigns
Callsigns held now by people who previously held K9AJC.
No current licensee on record previously held this callsign.