CFCallsignFinder

Search Watchlist

Track FCC amateur radio vanity callsign availability. Data updated daily.

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

© 2026 CallsignFinder. All rights reserved.

FCC data sourced from FCC Universal Licensing System. Not affiliated with the FCC.

Watchlist Search Account

Home/Search/W4AUU

← Back to results

W4AUU

Active1x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderWydro, Aaron J

License ClassTechnician

Min. Class RequiredGeneral

LocationBrandon, FL

Grant DateApr 24, 2018

Expiration DateApr 24, 2028

W4AUU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Wydro, Aaron J in Brandon, FL. 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 Wydro, Aaron J on Apr 6, 2018. W4AUU has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 28 units(Light (fast to send))

Voice Phonetics

Whiskey Four Alpha Uniform Uniform

Readability: 7/10(Good readability)

License History

License IssuedApr 24, 2018
Vanity Callsign GrantedApr 24, 2018
License ExpiredApr 11, 2012
Administrative Update AppliedOct 24, 2003
License RenewedJan 13, 2000

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Wydro, Aaron JFiled Apr 6, 2018
Not awardedFCC ↗
LONNEKE, MICHAEL DFiled Sep 10, 2015
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← W4AUT W4AUV →

FCC data as of Sep 4, 2026

W4AUU FCC Vanity Status: 2 Competing Applications & History