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KR4HEI

Cancelled2x3District 4

No competing applications on record.

License HolderRothlisberger, Matthew J

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationShalimar, FL

Grant DateNov 21, 2025

Cancellation DateDec 22, 2025

Available for ApplicationsDec 23, 2027

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KR4HEI

Cancelled2x3District 4

No competing applications on record.

License HolderRothlisberger, Matthew J

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationShalimar, FL

Grant DateNov 21, 2025

Cancellation DateDec 22, 2025

Available for ApplicationsDec 23, 2027

KR4HEI is a 2x3 format amateur radio callsign. It is currently registered to Rothlisberger, Matthew J in Shalimar, 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: 26 units(Light (fast to send))

Voice Phonetics

Kilo Romeo Four Hotel Echo India

Readability: 6.5/10(Good readability)

Available Dec 23, 2027 (474 days remaining)

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

License History

License CanceledDec 22, 2025
License ModifiedDec 5, 2025
System-Generated GrantNov 21, 2025
License IssuedNov 21, 2025

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 ↗

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FCC data as of Sep 4, 2026

Is KR4HEI Available? FCC Vanity Status & Watchlist