Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4GMA callsign genealogy
Currently held by Ferreira, Joseph 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 N4GMA's current licensee, walking backwards.
- Ferreira, Joseph ASCgranted 2026-04-21cancelled 2026-05-22
Successor callsigns
Callsigns held now by people who previously held N4GMA.
- Cantrell, Stephen BTNgranted 2017-02-03
All historical holders
Every license row we've seen with the callsign N4GMA, oldest first.
- Cantrell, Stephen B TN2007-01-09 → cancelled 2007-04-24
- Ferreira, Joseph A SC2026-05-22 active