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KO4YBR

Active2x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderRAIFSNIDER, ERIC R

License ClassGeneral

Min. Class RequiredTechnician

LocationKALAMAZOO, MI

Grant DateFeb 24, 2022

Expiration DateFeb 24, 2032

KO4YBR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by RAIFSNIDER, ERIC R in KALAMAZOO, MI. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Salles Baptista, Antonio Roberto on Apr 19, 2022. KO4YBR has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 44 units(Heavy (slower to send))

Voice Phonetics

Kilo Oscar Four Yankee Bravo Romeo

Readability: 7/10(Good readability)

License History

System-Generated GrantFeb 24, 2022
License IssuedFeb 24, 2022

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Salles Baptista, Antonio RobertoFiled Apr 19, 2022
DismissedFCC ↗
Salles Baptista, Antonio RobertoFiled Apr 19, 2022
DismissedFCC ↗

Search external databases

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← KO4YBQ KO4YBS →

FCC data as of Jul 10, 2026

KO4YBR FCC Vanity Status: 2 Competing Applications & History