Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9AJK callsign genealogy
Currently held by KAZMER, ARNOLD 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 K9AJK's current licensee, walking backwards.
- KAZMER, ARNOLD JILgranted 2013-03-08cancelled 2013-06-21
Successor callsigns
Callsigns held now by people who previously held K9AJK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9AJK, oldest first.
- MC CAULEY, LLOYD F IL1995-07-19 → cancelled 2007-07-20
- KAZMER, ARNOLD J IL2023-06-09 active