Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB6OZD callsign genealogy
Currently held by Welfringer, Jon
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 WB6OZD's current licensee, walking backwards.
- Welfringer, JonCAgranted 2017-04-26cancelled 2017-08-25
Successor callsigns
Callsigns held now by people who previously held WB6OZD.
- DOYEL, WALTER JCAgranted 1998-11-24cancelled 2010-11-25
All historical holders
Every license row we've seen with the callsign WB6OZD, oldest first.
- Welfringer, Jon CA2017-08-25 active
- DOYEL, WALTER J— → cancelled 1998-11-24