W3UDM
Active1x3District 3
Competitive callsign — 1 application filed with the FCC.
License HolderVon Runnen, Ed
License ClassGeneral
Min. Class RequiredGeneral
LocationSan Jose, CA
Grant DateApr 21, 2026
Expiration DateApr 21, 2036
W3UDM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Von Runnen, Ed in San Jose, CA. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Von Runnen, Ed on Apr 3, 2026. W3UDM has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- ...-- ..- -.. --
CW Weight: 32 units(Moderate)
Voice Phonetics
Whiskey Three Uniform Delta Mike
Readability: 8/10(High readability)
License History
- License ModifiedJun 23, 2026
- License IssuedApr 21, 2026
- Vanity Callsign GrantedApr 21, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Von Runnen, EdFiled Apr 3, 2026Not awardedFCC ↗