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KJ4SFO

Available2x3District 4

No competing applications on record.

License HolderCROCKER, MICHAEL L

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationUNION, SC

Grant DateFeb 16, 2010

Expiration DateFeb 16, 2020

Cancellation DateNov 30, 2010

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KJ4SFO

Available2x3District 4

No competing applications on record.

License HolderCROCKER, MICHAEL L

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationUNION, SC

Grant DateFeb 16, 2010

Expiration DateFeb 16, 2020

Cancellation DateNov 30, 2010

Available for ApplicationsDec 1, 2012

KJ4SFO is a 2x3 format amateur radio callsign. It is currently registered to CROCKER, MICHAEL L in UNION, SC. 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: 42 units(Heavy (slower to send))

Voice Phonetics

Kilo Juliet Four Sierra Foxtrot Oscar

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 CanceledNov 30, 2010
License ModifiedOct 6, 2010
License ModifiedApr 19, 2010
System-Generated GrantFeb 16, 2010
License IssuedFeb 16, 2010

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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← KJ4SFN KJ4SFP →

FCC data as of Sep 11, 2026

Is KJ4SFO Available? FCC Vanity Status & Watchlist