Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4DTI callsign genealogy
Currently held by DAVIS, WILLIAM F
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 KD4DTI's current licensee, walking backwards.
- Davis, William FKYgranted 2025-07-29cancelled 2025-08-26
Successor callsigns
Callsigns held now by people who previously held KD4DTI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4DTI, oldest first.
- DAVIS, WILLIAM F KY2013-03-26 → cancelled 2025-04-17
- Davis, William F KY2025-08-26 active