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K4NU

Active1x2District 4

Competitive callsign — 7 applications filed with the FCC.

License HolderWILLIAMS, STEPHEN E

License ClassTechnician

Min. Class RequiredAmateur Extra

LocationLAGUNA NIGUEL, CA

Grant DateApr 12, 2024

Expiration DateApr 12, 2034

K4NU is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by WILLIAMS, STEPHEN E in LAGUNA NIGUEL, CA. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by GILES II, ARTHUR W on May 29, 2026. K4NU has 7 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 23 units(Light (fast to send))

Voice Phonetics

Kilo Four November Uniform

Readability: 7.5/10(High readability)

License History

Vanity Callsign GrantedApr 12, 2024
License IssuedApr 12, 2024
License ExpiredMar 26, 2024
License RenewedFeb 28, 2012
Administrative Update AppliedNov 1, 2011
Tax ID (TIN) AddedDec 27, 2001
License RenewedDec 27, 2001

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

GILES II, ARTHUR WFiled May 29, 2026
Not awardedFCC ↗
Spratt, JustinFiled Mar 27, 2024
Not awardedFCC ↗
Melnik, StephenFiled Mar 25, 2024
Not awardedFCC ↗
WATERHOUSE, STEPHEN TFiled Mar 25, 2024

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K4NT K4NV →

FCC data as of Sep 4, 2026

Not awarded

Melinyshyn, JohnFiled Mar 25, 2024

Not awardedFCC ↗

DALDRY, JAMES EFiled Mar 1, 2012

DismissedFCC ↗

Unger, Nathaniel WFiled Sep 3, 2010

DismissedFCC ↗

K4NU FCC Vanity Status: 7 Competing Applications & History