Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3ZIV callsign genealogy
Currently held by Beyrer, William H
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 K3ZIV's current licensee, walking backwards.
- Beyrer, William HPAgranted 2004-05-06cancelled 2005-05-07
Successor callsigns
Callsigns held now by people who previously held K3ZIV.
No current licensee on record previously held this callsign.