Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4DQ callsign genealogy
Currently held by Zavagli, Phillip G
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 AI4DQ's current licensee, walking backwards.
- Horn Jr, Robert CTNgranted 2017-09-14cancelled 2018-03-20
Successor callsigns
Callsigns held now by people who previously held AI4DQ.
- Zavagli, Phillip GKYgranted 2025-01-23
All historical holders
Every license row we've seen with the callsign AI4DQ, oldest first.
- Zavagli, Phillip G KY2010-11-19 → cancelled 2015-01-21
- Horn Jr, Robert C TN2018-03-20 active