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N4UF

Active1x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderWILLIAMS JR, BILLY F

License ClassAmateur Extra

Min. Class RequiredAmateur Extra

LocationJACKSONVILLE, FL

Grant DateDec 30, 2025

Expiration DateMar 28, 2036

N4UF is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by WILLIAMS JR, BILLY F in JACKSONVILLE, FL. 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 McRae, Robert N on Apr 19, 2021. N4UF has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 22 units(Light (fast to send))

Voice Phonetics

November Four Uniform Foxtrot

Readability: 7.5/10(High readability)

License History

License RenewedDec 30, 2025
Administrative Update AppliedFeb 27, 2024
Administrative Update AppliedMay 21, 2021
License RenewedJan 6, 2016
License RenewedDec 31, 2005
FRN Association Email SentNov 5, 2005

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

McRae, Robert NFiled Apr 19, 2021
Not awardedFCC ↗

Search external databases

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FCC data as of Jul 30, 2026

N4UF FCC Vanity Status: 1 Competing Application & History