Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI7QU callsign genealogy
Currently held by Fitzsimmons, Sean S
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 AI7QU's current licensee, walking backwards.
- Fitzsimmons, Sean SORgranted 2022-03-14cancelled 2023-03-13
Successor callsigns
Callsigns held now by people who previously held AI7QU.
- Fitzsimmons, Sean SORgranted 2023-03-31