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KC5KSJ

Available2x3District 5

No competing applications on record.

License HolderMastin, Robert H

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationAlpine, TX

Grant DateSep 9, 2004

Expiration DateNov 8, 2014

Cancellation DateSep 28, 2004

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KC5KSJ

Available2x3District 5

No competing applications on record.

License HolderMastin, Robert H

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationAlpine, TX

Grant DateSep 9, 2004

Expiration DateNov 8, 2014

Cancellation DateSep 28, 2004

Available for ApplicationsSep 29, 2006

KC5KSJ is a 2x3 format amateur radio callsign. It is currently registered to Mastin, Robert H in Alpine, TX. 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: 40 units(Moderate)

Voice Phonetics

Kilo Charlie Five Kilo Sierra Juliet

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 CanceledSep 28, 2004
FRN Association Letter SentAug 10, 2004

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 29, 2026

Is KC5KSJ Available? FCC Vanity Status & Watchlist