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WB4MJM

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderGRANT, JEFFERSON H

License ClassAdvanced

Min. Class RequiredTechnician

LocationCHARLESTON, SC

Grant DateOct 13, 1987

Expiration DateOct 13, 1997

Cancellation DateOct 14, 1999

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WB4MJM

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderGRANT, JEFFERSON H

License ClassAdvanced

Min. Class RequiredTechnician

LocationCHARLESTON, SC

Grant DateOct 13, 1987

Expiration DateOct 13, 1997

Cancellation DateOct 14, 1999

Available for ApplicationsOct 14, 1999

WB4MJM is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by GRANT, JEFFERSON H in CHARLESTON, SC. 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 Starbuck-Hinkins, Mary-Jane on Apr 15, 2024. WB4MJM has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

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

CW Weight: 42 units(Heavy (slower to send))

Voice Phonetics

Whiskey Bravo Four Mike Juliet Mike

Readability: 8/10(High readability)

This callsign is available now

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

License History

License ExpiredOct 14, 1999

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Starbuck-Hinkins, Mary-JaneFiled Apr 15, 2024
Not awardedFCC ↗

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FCC data as of Jul 10, 2026

WB4MJM FCC Vanity Status: 1 Competing Application & History