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WB4DRF

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderISOM, JONATHAN D

License ClassTechnician

Min. Class RequiredTechnician

LocationUnion Gap, WA

Grant DateJul 14, 2018

Expiration DateJul 14, 2028

WB4DRF is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by ISOM, JONATHAN D in Union Gap, WA. 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 Kennedy, Charlie F on Jun 26, 2018. WB4DRF has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 36 units(Moderate)

Voice Phonetics

Whiskey Bravo Four Delta Romeo Foxtrot

Readability: 7/10(Good readability)

License History

Administrative Update AppliedJul 18, 2018
License IssuedJul 14, 2018
Vanity Callsign GrantedJul 14, 2018

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Kennedy, Charlie FFiled Jun 26, 2018
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 3, 2026

WB4DRF FCC Vanity Status: 1 Competing Application & History