Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3BD callsign genealogy
Currently held by DUNBAR, WILLIAM A
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 N3BD's current licensee, walking backwards.
- Denny Jr, Robert WMDgranted 2003-09-18cancelled 2009-08-21
Successor callsigns
Callsigns held now by people who previously held N3BD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3BD, oldest first.
- DUNBAR, WILLIAM A PA1997-07-31 → cancelled 2009-08-01
- Denny Jr, Robert W MD2019-06-06 active