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KK4SIW

Available2x3District 4

No competing applications on record.

License HolderSchneider, John W

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationCastle Rock, CO

Grant DateJul 1, 2013

Expiration DateJul 1, 2023

Cancellation DateJul 2, 2025

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KK4SIW

Available2x3District 4

No competing applications on record.

License HolderSchneider, John W

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationCastle Rock, CO

Grant DateJul 1, 2013

Expiration DateJul 1, 2023

Cancellation DateJul 2, 2025

Available for ApplicationsJul 2, 2025

KK4SIW is a 2x3 format amateur radio callsign. It is currently registered to Schneider, John W in Castle Rock, CO. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Kilo Four Sierra India Whiskey

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 2, 2025
System-Generated GrantJul 1, 2013
License IssuedJul 1, 2013

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

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FCC data as of Jul 31, 2026

Is KK4SIW Available? FCC Vanity Status & Watchlist