K0MMS
Active1x3District 0
Competitive callsign — 7 applications filed with the FCC.
License HolderSowell, Mark
License ClassGeneral
Min. Class RequiredGeneral
LocationOro Valley, AZ
Grant DateMay 30, 2025
Expiration DateMay 30, 2035
K0MMS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Sowell, Mark in Oro Valley, AZ. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by Sowell, Mark on May 12, 2025. K0MMS has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----- -- -- ...
CW Weight: 37 units(Moderate)
Voice Phonetics
Kilo Zero Mike Mike Sierra
Readability: 8/10(High readability)
License History
- Administrative Update AppliedAug 18, 2026
- License ModifiedDec 29, 2025
- License IssuedMay 30, 2025
- Vanity Callsign GrantedMay 30, 2025
- License ExpiredJun 13, 2018
- License RenewedApr 11, 2006
- Administrative Update AppliedJul 26, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.