Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD6D callsign genealogy
Currently held by ROSE, HELMUT
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 WD6D's current licensee, walking backwards.
- Johnson, Patrick DCAgranted 2016-11-23cancelled 2017-09-09
Successor callsigns
Callsigns held now by people who previously held WD6D.
All historical holders
Every license row we've seen with the callsign WD6D, oldest first.
- ROSE, HELMUT CA2008-02-23 → cancelled 2015-08-21
- Johnson, Patrick D ID2017-09-09 → cancelled 2026-02-07