Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3BDC callsign genealogy
Currently held by CLAUSS, DONALD D
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 W3BDC's current licensee, walking backwards.
- Cohan, Brian DVAgranted 2017-04-21cancelled 2017-05-12
Successor callsigns
Callsigns held now by people who previously held W3BDC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3BDC, oldest first.
- CLAUSS, DONALD D PA1999-02-10 → cancelled 2011-02-11
- Cohan, Brian D VA2017-05-12 active