Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB3DX callsign genealogy
Currently held by WESTERN PENNSYLVANIA DX ASSOC
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 WB3DX's current licensee, walking backwards.
- Hilderbrand, John APAgranted 2015-10-01cancelled 2016-01-16
Successor callsigns
Callsigns held now by people who previously held WB3DX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB3DX, oldest first.
- WESTERN PENNSYLVANIA DX ASSOC OH1998-10-05 → cancelled 1999-09-02
- Hilderbrand, John A PA2016-01-16 active