Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ6NJ callsign genealogy
Currently held by Mastroleo, Michael P
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 AJ6NJ's current licensee, walking backwards.
- Mastroleo, Michael PCAgranted 2012-10-09cancelled 2020-01-10
Successor callsigns
Callsigns held now by people who previously held AJ6NJ.
No current licensee on record previously held this callsign.