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WD4DVO

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderJOHNSTON III, WILLIAM D

License ClassAmateur Extra

Min. Class RequiredTechnician

Locationrocklin, CA

Grant DateOct 23, 2017

Expiration DateJan 15, 2028

Cancellation DateFeb 11, 2020

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WD4DVO

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderJOHNSTON III, WILLIAM D

License ClassAmateur Extra

Min. Class RequiredTechnician

Locationrocklin, CA

Grant DateOct 23, 2017

Expiration DateJan 15, 2028

Cancellation DateFeb 11, 2020

Available for ApplicationsFeb 12, 2022

WD4DVO is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by JOHNSTON III, WILLIAM D in rocklin, CA. 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 JOHNSTON III, WILLIAM D on Dec 26, 2007. WD4DVO has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 39 units(Moderate)

Voice Phonetics

Whiskey Delta Four Delta Victor Oscar

Readability: 7.5/10(High readability)

This callsign is available now

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

License History

License CanceledFeb 11, 2020
License RenewedOct 23, 2017
Administrative Update AppliedSep 23, 2008
License IssuedJan 15, 2008
Vanity Callsign GrantedJan 15, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

JOHNSTON III, WILLIAM DFiled Dec 26, 2007
Not awardedFCC ↗

Search external databases

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FCC data as of Jul 29, 2026

WD4DVO FCC Vanity Status: 1 Competing Application & History