Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3ZO callsign genealogy
Currently held by Laun III, Alfred A
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 K3ZO's current licensee, walking backwards.
- NC3DXcancelledNATIONAL CAPITOL DX ASSNVAgranted 2016-10-28cancelled 2023-09-15
- KE4YVIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K3ZO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3ZO, oldest first.
- Laun III, Alfred A MD2016-04-15 → cancelled 2023-01-03
- NATIONAL CAPITOL DX ASSN VA2023-09-15 active