Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7DU callsign genealogy
Currently held by Turnblom, Bruce 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 AC7DU's current licensee, walking backwards.
- TURNBLOM, BRUCE AIDgranted 1998-09-15cancelled 2000-05-26
Successor callsigns
Callsigns held now by people who previously held AC7DU.
No current licensee on record previously held this callsign.