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KK4SO

Active2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderCAREY, ROBERT D

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationMarco Island, FL

Grant DateJun 9, 2020

Expiration DateJul 3, 2030

KK4SO is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by CAREY, ROBERT D in Marco Island, FL. 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 Osborne, Lawrence L on Mar 25, 2016. KK4SO has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Kilo Four Sierra Oscar

Readability: 7.5/10(High readability)

License History

License RenewedJun 9, 2020
Administrative Update AppliedDec 21, 2017
License RenewedApr 10, 2010
License RenewedJun 30, 2000

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Osborne, Lawrence LFiled Mar 25, 2016
DismissedFCC ↗

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FCC data as of Oct 29, 2026

KK4SO FCC Vanity Status: 1 Competing Application & History