Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4BTO callsign genealogy
Currently held by Hayes, Daniella R
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 KO4BTO's current licensee, walking backwards.
- Hayes, Daniella RKYgranted 2013-12-13cancelled 2020-02-11
Successor callsigns
Callsigns held now by people who previously held KO4BTO.
- Hayes, Daniella RMIgranted 2020-02-29