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KO4TBY

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderSapp, Robert C

License ClassTechnician

Min. Class RequiredTechnician

LocationMOUNT HOLLY, NC

Grant DateSep 8, 2021

Expiration DateSep 8, 2031

KO4TBY is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Sapp, Robert C in MOUNT HOLLY, NC. 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 BARKER, ADAM L on Sep 23, 2020. KO4TBY has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-.- --- ....- - -... -.--

CW Weight: 42 units(Heavy (slower to send))

Voice Phonetics

Kilo Oscar Four Tango Bravo Yankee

Readability: 7.5/10(High readability)

License History

System-Generated GrantSep 8, 2021
License IssuedSep 8, 2021

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

BARKER, ADAM LFiled Sep 23, 2020
Not awardedFCC ↗

Search external databases

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FCC data as of Jul 10, 2026

KO4TBY FCC Vanity Status: 1 Competing Application & History