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KO4JBB

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderOverhuel, Coleen M

License ClassTechnician

Min. Class RequiredTechnician

LocationHillsboro, OR

Grant DateNov 12, 2020

Expiration DateNov 12, 2030

Cancellation DateDec 8, 2020

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KO4JBB

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderOverhuel, Coleen M

License ClassTechnician

Min. Class RequiredTechnician

LocationHillsboro, OR

Grant DateNov 12, 2020

Expiration DateNov 12, 2030

Cancellation DateDec 8, 2020

Available for ApplicationsDec 9, 2022

KO4JBB is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Overhuel, Coleen M in Hillsboro, OR. 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 Brewer III, Joseph B on Mar 18, 2021. KO4JBB has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 45 units(Heavy (slower to send))

Voice Phonetics

Kilo Oscar Four Juliet Bravo Bravo

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 CanceledDec 8, 2020
License ModifiedNov 30, 2020
System-Generated GrantNov 12, 2020
License IssuedNov 12, 2020

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Brewer III, Joseph BFiled Mar 18, 2021
Not awardedFCC ↗

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FCC data as of Sep 4, 2026

KO4JBB FCC Vanity Status: 1 Competing Application & History