Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DVZ callsign genealogy
Currently held by Zimmer, David V
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 K4DVZ's current licensee, walking backwards.
- Zimmer, David VKYgranted 2024-11-20cancelled 2024-12-10
Successor callsigns
Callsigns held now by people who previously held K4DVZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DVZ, oldest first.
- CLARK, DAVID R TN1998-10-27 → cancelled 2010-10-28
- Zimmer, David V KY2024-12-10 active