Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD9CH callsign genealogy
Currently held by Magnus, Sheila M
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 AD9CH's current licensee, walking backwards.
- Magnus, Sheila MILgranted 2019-05-22cancelled 2023-05-12
Successor callsigns
Callsigns held now by people who previously held AD9CH.
- Magnus, Sheila MILgranted 2023-06-22