Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7WM callsign genealogy
Currently held by CROTHERS, MARK A
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 AI7WM's current licensee, walking backwards.
- CROTHERS, MARK AWAgranted 2023-12-13cancelled 2024-03-11
Successor callsigns
Callsigns held now by people who previously held AI7WM.
- Crothers, Doc Mark AWAgranted 2024-03-29