Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4DW callsign genealogy
Currently held by WEINSHEIMER, DAVID L
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 WD4DW's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WD4DW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD4DW, oldest first.
- WEINSHEIMER, DAVID L FL2003-09-06 → cancelled 2015-09-15
- Schlegel Sr, John H AZ2015-12-29 active