Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0DWZ callsign genealogy
Currently held by WATSON, JAMES R
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 KC0DWZ's current licensee, walking backwards.
- Zvareck, Donald WMNgranted 2020-09-15cancelled 2020-11-10
Successor callsigns
Callsigns held now by people who previously held KC0DWZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0DWZ, oldest first.
- WATSON, JAMES R NE1998-07-22 → cancelled 2010-07-23
- Zvareck, Donald W MN2020-11-10 active