KM3I
Active2x1District 3
Competitive callsign — 3 applications filed with the FCC.
License HolderGrumbine, John
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationPittsburgh, PA
Grant DateJun 30, 2026
Expiration DateJun 30, 2036
KM3I is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Grumbine, John in Pittsburgh, PA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Grumbine, John on Jun 11, 2026. KM3I has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- -- ...-- ..
CW Weight: 24 units(Light (fast to send))
Voice Phonetics
Kilo Mike Three India
Readability: 8.5/10(High readability)
License History
- Vanity Callsign GrantedJun 30, 2026
- License IssuedJun 30, 2026
- License ExpiredMay 19, 2026
- Administrative Update AppliedDec 21, 2021
- License RenewedMar 25, 2014
- Tax ID (TIN) AddedApr 26, 2004
- License RenewedApr 26, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.