Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4SB callsign genealogy
Currently held by Gast, Ronald E
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 AF4SB's current licensee, walking backwards.
- GAST, RONALD EKYgranted 1998-06-14cancelled 2000-04-28
Successor callsigns
Callsigns held now by people who previously held AF4SB.
- Gast, Ronald EKYgranted 2020-08-14