Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7ZH callsign genealogy
Currently held by Trower, Jonathan
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 AI7ZH's current licensee, walking backwards.
- Trower, JonathanAZgranted 2024-06-28cancelled 2024-07-16
Successor callsigns
Callsigns held now by people who previously held AI7ZH.
No current licensee on record previously held this callsign.