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KF4LOS

Available2x3District 4

No competing applications on record.

License HolderMARTINEZ, ALTAGRACIA

License ClassTechnician

Min. Class RequiredTechnician

LocationTAMPA, FL

Grant DateAug 21, 1996

Expiration DateAug 21, 2006

Cancellation DateAug 22, 2008

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KF4LOS

Available2x3District 4

No competing applications on record.

License HolderMARTINEZ, ALTAGRACIA

License ClassTechnician

Min. Class RequiredTechnician

LocationTAMPA, FL

Grant DateAug 21, 1996

Expiration DateAug 21, 2006

Cancellation DateAug 22, 2008

Available for ApplicationsAug 22, 2008

KF4LOS is a 2x3 format amateur radio callsign. It is currently registered to MARTINEZ, ALTAGRACIA in TAMPA, FL. 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: 38 units(Moderate)

Voice Phonetics

Kilo Foxtrot Four Lima Oscar Sierra

Readability: 7/10(Good readability)

This callsign is available now

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

License History

License ExpiredAug 22, 2008

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 Sep 3, 2026

Is KF4LOS Available? FCC Vanity Status & Watchlist