Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB3DMU callsign genealogy
Currently held by MURPHY JR, HAROLD P
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 WB3DMU's current licensee, walking backwards.
- MURPHY JR, HAROLD Pcancelled 1997-10-15
Successor callsigns
Callsigns held now by people who previously held WB3DMU.
No current licensee on record previously held this callsign.