Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS0FD callsign genealogy
Currently held by BIEBERLE, MICHAEL D
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 KS0FD's current licensee, walking backwards.
- BIEBERLE, MICHAEL DKSgranted 2014-02-06cancelled 2020-09-01
Successor callsigns
Callsigns held now by people who previously held KS0FD.
No current licensee on record previously held this callsign.