KO7S
Active2x1District 7
Competitive callsign — 3 applications filed with the FCC.
License HolderBerg, Robert C
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationBranson, MO
Grant DateMar 20, 2018
Expiration DateJun 17, 2028
KO7S is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by Berg, Robert C in Branson, MO. 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 Berg, Robert C on May 30, 2008. KO7S has 11 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- --- --... ...
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Oscar Seven Sierra
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedAug 11, 2026
- Administrative Update AppliedSep 9, 2025
- Administrative Update AppliedMay 31, 2018
- License RenewedMar 20, 2018
- Administrative Update AppliedJan 30, 2018
- Administrative Update AppliedSep 25, 2012
- Administrative Update AppliedApr 21, 2009
- License IssuedJun 17, 2008
- Vanity Callsign GrantedJun 17, 2008
- License ExpiredMay 30, 2008
- Administrative Update AppliedNov 5, 1999
Vanity Application Activity
Competing applications filed with the FCC for this callsign.