K5OO
Active1x2District 5
Competitive callsign — 1 application filed with the FCC.
License HolderGRAVES, MARK A
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationCLARKSVILLE, AR
Grant DateAug 13, 2026
Expiration DateNov 4, 2036
K5OO is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by GRAVES, MARK A in CLARKSVILLE, AR. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Sheils, William H on Mar 23, 2015. K5OO has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ..... --- ---
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Five Oscar Oscar
Readability: 8.5/10(High readability)
License History
- License RenewedAug 13, 2026
- License RenewedSep 7, 2016
- License RenewedAug 16, 2006
- Administrative Update AppliedMar 23, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Sheils, William HFiled Mar 23, 2015Not awardedFCC ↗