Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3WMU callsign genealogy
Currently held by WALSH, RICHARD G
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 W3WMU's current licensee, walking backwards.
- WALSH, JEFFREY HMSgranted 2003-02-01cancelled 2010-04-02
Successor callsigns
Callsigns held now by people who previously held W3WMU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3WMU, oldest first.
- WALSH, RICHARD G FL2006-06-02 → cancelled 2008-12-19
- WALSH, JEFFREY H AL2020-01-13 active