Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA7BA callsign genealogy
Currently held by Mazza, Robert C
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 AA7BA's current licensee, walking backwards.
- Mazza, Robert CAZgranted 2004-06-08cancelled 2006-06-13
Successor callsigns
Callsigns held now by people who previously held AA7BA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA7BA, oldest first.
- GILLINGHAM, ROBERT J WA1989-07-03 → cancelled 2001-07-04
- Mazza, Robert C AZ2026-03-19 active