Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7DZD callsign genealogy
Currently held by ZIELKE, DARRELL W
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 W7DZD's current licensee, walking backwards.
- Zielke, Darrell WWAgranted 2013-03-01cancelled 2013-05-03
Successor callsigns
Callsigns held now by people who previously held W7DZD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7DZD, oldest first.
- NASMAN, EDWIN W OR1997-12-10 → cancelled 2009-12-11
- ZIELKE, DARRELL W WA2025-04-23 active