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K8OIO

Available1x3District 8

Competitive callsign — 1 application filed with the FCC.

License HolderHOLDEMAN, DAVID L

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationOSWEGO, IL

Grant DateJul 26, 1996

Expiration DateJul 26, 2006

Cancellation DateSep 20, 2003

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K8OIO

Available1x3District 8

Competitive callsign — 1 application filed with the FCC.

License HolderHOLDEMAN, DAVID L

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationOSWEGO, IL

Grant DateJul 26, 1996

Expiration DateJul 26, 2006

Cancellation DateSep 20, 2003

Available for ApplicationsSep 21, 2005

K8OIO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by HOLDEMAN, DAVID L in OSWEGO, IL. 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 Hart, Ben on Mar 26, 2021. K8OIO has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 38 units(Moderate)

Voice Phonetics

Kilo Eight Oscar India Oscar

Readability: 7.5/10(High readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (1x3).

License History

License CanceledSep 20, 2003
License ModifiedJun 2, 2000
Administrative Update AppliedOct 14, 1999

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Hart, BenFiled Mar 26, 2021
Not awardedFCC ↗

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FCC data as of Jul 31, 2026

K8OIO FCC Vanity Status: 1 Competing Application & History