K1SEM
Cancelled1x3District 1
Competitive callsign — 5 applications filed with the FCC.
License HolderMabe, Steven
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationAvon, OH
Grant DateAug 5, 2025
Cancellation DateFeb 27, 2026
Available for ApplicationsFeb 28, 2028
K1SEM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Mabe, Steven in Avon, OH. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Mabe, Steven on Jul 18, 2025. K1SEM has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .---- ... . --
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo One Sierra Echo Mike
Readability: 8/10(High readability)
Available Feb 28, 2028 (542 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledFeb 27, 2026
- License ModifiedFeb 5, 2026
- License IssuedAug 5, 2025
- Vanity Callsign GrantedAug 5, 2025
- License CanceledApr 25, 2015
- Vanity Callsign GrantedOct 21, 2014
- License IssuedOct 21, 2014
Vanity Application Activity
Competing applications filed with the FCC for this callsign.