Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7UN callsign genealogy
Currently held by Engle, David E
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 AI7UN's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AI7UN.
No current licensee on record previously held this callsign.