Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AJ4MZ callsign genealogy
Currently held by Tittle, James A
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 AJ4MZ's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AJ4MZ.
- Tittle, James ATNgranted 2009-01-10cancelled 2021-01-12