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K4RBJ

Expired1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderBierbaum, David E

License ClassGeneral

Min. Class RequiredGeneral

LocationKennesaw, GA

Grant DateNov 18, 2015

Expiration DateNov 18, 2025

Available for ApplicationsNov 19, 2027

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K4RBJ

Expired1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderBierbaum, David E

License ClassGeneral

Min. Class RequiredGeneral

LocationKennesaw, GA

Grant DateNov 18, 2015

Expiration DateNov 18, 2025

Available for ApplicationsNov 19, 2027

K4RBJ is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Bierbaum, David E in Kennesaw, GA. 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 Tadlock Jr, Ronald B on Nov 23, 2020. K4RBJ has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 35 units(Moderate)

Voice Phonetics

Kilo Four Romeo Bravo Juliet

Readability: 7/10(Good readability)

Available Nov 19, 2027 (441 days remaining)

Requires General license or higher to apply for this callsign format (1x3).

License History

License RenewedNov 18, 2015
License RenewedJun 9, 2005

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Tadlock Jr, Ronald BFiled Nov 23, 2020
DismissedFCC ↗

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FCC data as of Sep 3, 2026

K4RBJ FCC Vanity Status: 1 Competing Application & History