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KM4BRI

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderCaldwell, Christopher W

License ClassTechnician

Min. Class RequiredTechnician

LocationCedar Rapids, IA

Grant DateMay 27, 2014

Expiration DateMay 27, 2024

Cancellation DateJul 11, 2014

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KM4BRI

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderCaldwell, Christopher W

License ClassTechnician

Min. Class RequiredTechnician

LocationCedar Rapids, IA

Grant DateMay 27, 2014

Expiration DateMay 27, 2024

Cancellation DateJul 11, 2014

Available for ApplicationsJul 12, 2016

KM4BRI is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Caldwell, Christopher W in Cedar Rapids, IA. 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 Richardson, Brian D on Nov 21, 2016. KM4BRI has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Mike Four Bravo Romeo India

Readability: 7/10(Good readability)

This callsign is available now

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

License History

License CanceledJul 11, 2014
License ModifiedJul 1, 2014
System-Generated GrantMay 27, 2014
License IssuedMay 27, 2014

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Richardson, Brian DFiled Nov 21, 2016
Not awardedFCC ↗

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← KM4BRH KM4BRJ →

FCC data as of Jul 29, 2026

KM4BRI FCC Vanity Status: 1 Competing Application & History