Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4DZ callsign genealogy
Currently held by CONNOLLY, DONALD J
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 AI4DZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AI4DZ.
No current licensee on record previously held this callsign.