Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4BYD callsign genealogy
Currently held by Cease, Susan C
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 KF4BYD's current licensee, walking backwards.
- Cease, Susan CNCgranted 2020-06-26cancelled 2021-04-29
Successor callsigns
Callsigns held now by people who previously held KF4BYD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4BYD, oldest first.
- CEASE, SUSAN C NC2005-06-08 → cancelled 2017-07-22
- Cease, Susan C NC2021-04-29 active