Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4ZQ callsign genealogy
Currently held by Ellenburg Jr, John 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 AI4ZQ's current licensee, walking backwards.
- Ellenburg Jr, John JTNgranted 2004-08-31cancelled 2007-06-28
Successor callsigns
Callsigns held now by people who previously held AI4ZQ.
No current licensee on record previously held this callsign.