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KN4RJD

Available2x3District 4

No competing applications on record.

License HolderWARREN, MICHAEL O

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationARLINGTON, TX

Grant DateDec 26, 2018

Expiration DateDec 26, 2028

Cancellation DateMar 20, 2020

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KN4RJD

Available2x3District 4

No competing applications on record.

License HolderWARREN, MICHAEL O

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationARLINGTON, TX

Grant DateDec 26, 2018

Expiration DateDec 26, 2028

Cancellation DateMar 20, 2020

Available for ApplicationsMar 21, 2022

KN4RJD is a 2x3 format amateur radio callsign. It is currently registered to WARREN, MICHAEL O in ARLINGTON, 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: 38 units(Moderate)

Voice Phonetics

Kilo November Four Romeo Juliet Delta

Readability: 6/10(Good readability)

This callsign is available now

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

License History

License CanceledMar 20, 2020
System-Generated GrantDec 26, 2018
License IssuedDec 26, 2018

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 12, 2026

Is KN4RJD Available? FCC Vanity Status & Watchlist