Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4MD callsign genealogy
Currently held by OLIVER, MICHAEL R
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 AF4MD's current licensee, walking backwards.
- OLIVER, MICHAEL Rcancelled 1998-09-30
Successor callsigns
Callsigns held now by people who previously held AF4MD.
- OLIVER, MICHAEL RSCgranted 2024-10-16