Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4EU callsign genealogy
Currently held by Smith, Jason M
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 KY4EU's current licensee, walking backwards.
- Smith, Jason MALgranted 2020-06-11cancelled 2021-02-22
Successor callsigns
Callsigns held now by people who previously held KY4EU.
- Smith, Jason MALgranted 2021-03-12