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KR4MFU

Cancelled2x3District 4

No competing applications on record.

License HolderBrill, Gregory K

License ClassTechnician

Min. Class RequiredTechnician

LocationEstero, FL

Grant DateMay 15, 2026

Cancellation DateJun 6, 2026

Available for ApplicationsJun 7, 2028

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KR4MFU

Cancelled2x3District 4

No competing applications on record.

License HolderBrill, Gregory K

License ClassTechnician

Min. Class RequiredTechnician

LocationEstero, FL

Grant DateMay 15, 2026

Cancellation DateJun 6, 2026

Available for ApplicationsJun 7, 2028

KR4MFU is a 2x3 format amateur radio callsign. It is currently registered to Brill, Gregory K in Estero, FL. 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: 36 units(Moderate)

Voice Phonetics

Kilo Romeo Four Mike Foxtrot Uniform

Readability: 7/10(Good readability)

Available Jun 7, 2028 (641 days remaining)

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

License History

License CanceledJun 6, 2026
System-Generated GrantMay 15, 2026
License IssuedMay 15, 2026

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.

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KR4MFT KR4MFV →

FCC data as of Sep 4, 2026

Is KR4MFU Available? FCC Vanity Status & Watchlist