Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DDZ callsign genealogy
Currently held by Ard, Clark M
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 W4DDZ's current licensee, walking backwards.
- Ard, Clark MSCgranted 2022-12-16cancelled 2023-02-17
Successor callsigns
Callsigns held now by people who previously held W4DDZ.
- ZINK, RALPHKYgranted 2025-04-15
All historical holders
Every license row we've seen with the callsign W4DDZ, oldest first.
- ZINK, RALPH KY2011-12-13 → cancelled 2015-06-05
- Ard, Clark M SC2023-02-17 active