Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ9MJ callsign genealogy
Currently held by Jung, Matthias
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 AJ9MJ's current licensee, walking backwards.
- Jung, MatthiasCAgranted 2022-06-30cancelled 2022-07-26
Successor callsigns
Callsigns held now by people who previously held AJ9MJ.
No current licensee on record previously held this callsign.