Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KT4AO callsign genealogy
Currently held by BOYLE, RALPH T
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 KT4AO's current licensee, walking backwards.
- KE4KXWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KT4AO.
- BOYLE, RALPH TGAgranted 2022-11-22