Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7US callsign genealogy
Currently held by Springer, William
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 AI7US's current licensee, walking backwards.
- Springer, WilliamWAgranted 2022-10-14cancelled 2023-12-14
Successor callsigns
Callsigns held now by people who previously held AI7US.
No current licensee on record previously held this callsign.