Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ1X callsign genealogy
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 AJ1X's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AJ1X.
- Toussaint, MarkFLgranted 2019-01-31cancelled 2025-09-27
All historical holders
Every license row we've seen with the callsign AJ1X, oldest first.
- ZIMMATORE JR, JOHN J MA2025-11-25 active
- —— → cancelled 1998-05-20