Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KY4OR callsign genealogy
Currently held by Greenfield, Daniel S
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 KY4OR's current licensee, walking backwards.
- Greenfield, Daniel SVAgranted 2020-03-13cancelled 2022-04-18
Successor callsigns
Callsigns held now by people who previously held KY4OR.
- Greenfield, Daniel SVAgranted 2022-06-03