Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1EF callsign genealogy
Currently held by ARRUDA, JAMES M
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 AC1EF's current licensee, walking backwards.
- ARRUDA, JAMES MRIgranted 2018-03-27
Successor callsigns
Callsigns held now by people who previously held AC1EF.
- ARRUDA, JAMES MRIgranted 2018-03-27