Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA0USA callsign genealogy
Currently held by Landis Jr, David E
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 KA0USA's current licensee, walking backwards.
- Landis Jr, David EOHgranted 2020-09-24cancelled 2025-06-21
Successor callsigns
Callsigns held now by people who previously held KA0USA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA0USA, oldest first.
- EWING, LOIS J AZ2010-03-19 → cancelled 2022-03-22
- Landis Jr, David E OH2025-06-21 active