K1MMC
Available1x3District 1
Competitive callsign — 2 applications filed with the FCC.
License HolderCOFFMAN, MARGARET M
License ClassTechnician
Min. Class RequiredGeneral
LocationSioux Falls, SD
Grant DateApr 9, 2013
Expiration DateApr 9, 2023
Cancellation DateApr 10, 2025
Available for ApplicationsApr 10, 2025
K1MMC is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by COFFMAN, MARGARET M in Sioux Falls, SD. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Cho, Mason on May 1, 2025. K1MMC has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .---- -- -- -.-.
CW Weight: 40 units(Moderate)
Voice Phonetics
Kilo One Mike Mike Charlie
Readability: 9/10(Excellent readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredApr 10, 2025
- Administrative Update AppliedMar 29, 2017
- Administrative Update AppliedApr 19, 2016
- License IssuedApr 9, 2013
- Vanity Callsign GrantedApr 9, 2013
Vanity Application Activity
Competing applications filed with the FCC for this callsign.