Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4VB callsign genealogy
Currently held by FOSTER JR, WILLIAM
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 KY4VB's current licensee, walking backwards.
- FOSTER JR, WILLIAMGAgranted 2022-09-15cancelled 2023-02-06
Successor callsigns
Callsigns held now by people who previously held KY4VB.
- FOSTER Jr, WILLIAMGAgranted 2023-04-04