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K8CSO

Active1x3District 8

Competitive callsign — 1 application filed with the FCC.

License HolderOSBORN, CAROLYN S

License ClassTechnician

Min. Class RequiredGeneral

LocationBEAVERCREEK, OH

Grant DateJan 30, 2019

Expiration DateJun 2, 2028

K8CSO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by OSBORN, CAROLYN S in BEAVERCREEK, OH. 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 Kraai, Timothy E on Apr 28, 2011. K8CSO has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 38 units(Moderate)

Voice Phonetics

Kilo Eight Charlie Sierra Oscar

Readability: 7.5/10(High readability)

License History

License RenewedJan 30, 2019
License RenewedApr 24, 2010
Tax ID (TIN) AddedApr 22, 2010

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Kraai, Timothy EFiled Apr 28, 2011
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 3, 2026

K8CSO FCC Vanity Status: 1 Competing Application & History