WA1UMU
Active2x3District 1
Competitive callsign — 1 application filed with the FCC.
License HolderJaczko, Rob
License ClassGeneral
Min. Class RequiredTechnician
LocationN. Stamford, CT
Grant DateFeb 27, 2018
Expiration DateFeb 27, 2028
WA1UMU is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Jaczko, Rob in N. Stamford, CT. 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 Jaczko Jr, Robert J on Feb 7, 2018. WA1UMU has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
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CW Weight: 40 units(Moderate)
Voice Phonetics
Whiskey Alpha One Uniform Mike Uniform
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedJul 27, 2026
- Administrative Update AppliedSep 12, 2025
- Administrative Update AppliedSep 9, 2025
- License ModifiedJun 6, 2019
- License IssuedFeb 27, 2018
- Vanity Callsign GrantedFeb 27, 2018
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Jaczko Jr, Robert JFiled Feb 7, 2018Not awardedFCC ↗