Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7EM callsign genealogy
Currently held by FITZGERALD, WILLIAM K
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 AC7EM's current licensee, walking backwards.
- FITZGERALD, WILLIAM KWAgranted 1997-06-24cancelled 2000-06-02
Successor callsigns
Callsigns held now by people who previously held AC7EM.
No current licensee on record previously held this callsign.