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N4MDO

Expired1x3District 4

No competing applications on record.

License HolderGROSS SR, OTTO M

License ClassGeneral

Min. Class RequiredGeneral

LocationMARION, NC

Grant DateMay 21, 2015

Expiration DateMay 21, 2025

Available for ApplicationsMay 22, 2027

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N4MDO

Expired1x3District 4

No competing applications on record.

License HolderGROSS SR, OTTO M

License ClassGeneral

Min. Class RequiredGeneral

LocationMARION, NC

Grant DateMay 21, 2015

Expiration DateMay 21, 2025

Available for ApplicationsMay 22, 2027

N4MDO is a 1x3 format amateur radio callsign. It is currently registered to GROSS SR, OTTO M in MARION, NC. 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: 31 units(Moderate)

Voice Phonetics

November Four Mike Delta Oscar

Readability: 8/10(High readability)

Available May 22, 2027 (260 days remaining)

Requires General license or higher to apply for this callsign format (1x3).

License History

License RenewedMay 21, 2015
License RenewedMar 17, 2005
Administrative Update AppliedApr 15, 2003

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 4, 2026

Is N4MDO Available? FCC Vanity Status & Watchlist