Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE4AOO callsign genealogy
Currently held by DEPP, WALTER D
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 KE4AOO's current licensee, walking backwards.
- DEPP, WALTER DKYgranted 2024-04-05cancelled 2024-04-23
Successor callsigns
Callsigns held now by people who previously held KE4AOO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE4AOO, oldest first.
- DEPP, WALTER D KY2003-04-26 → cancelled 2015-04-28
- DEPP, WALTER D KY2024-04-23 active