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KC5IOS

Available2x3District 5

Competitive callsign — 1 application filed with the FCC.

License HolderLund, Willy S

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationPortland, OR

Grant DateJul 16, 1994

Expiration DateJul 16, 2004

Cancellation DateJul 18, 2006

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KC5IOS

Available2x3District 5

Competitive callsign — 1 application filed with the FCC.

License HolderLund, Willy S

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationPortland, OR

Grant DateJul 16, 1994

Expiration DateJul 16, 2004

Cancellation DateJul 18, 2006

Available for ApplicationsJul 17, 2006

KC5IOS is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Lund, Willy S in Portland, OR. 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 Montoya, Ronald on Dec 30, 2013. KC5IOS has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

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

CW Weight: 34 units(Moderate)

Voice Phonetics

Kilo Charlie Five India Oscar Sierra

Readability: 6.5/10(Good readability)

This callsign is available now

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License ExpiredJul 18, 2006

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Montoya, RonaldFiled Dec 30, 2013
Not awardedFCC ↗

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FCC data as of Jul 29, 2026

KC5IOS FCC Vanity Status: 1 Competing Application & History