Home/Search/KJ4DDU

KJ4DDU

Available2x3District 4

No competing applications on record.

License HolderHenderson, Andrew W

License ClassTechnician

Min. Class RequiredTechnician

LocationJacksonville, FL

Grant DateApr 8, 2008

Expiration DateApr 8, 2018

Cancellation DateApr 9, 2020

CallsignFinder

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

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

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

Watchlist Search Account

Home/Search/KJ4DDU

← Back to results

KJ4DDU

Available2x3District 4

No competing applications on record.

License HolderHenderson, Andrew W

License ClassTechnician

Min. Class RequiredTechnician

LocationJacksonville, FL

Grant DateApr 8, 2008

Expiration DateApr 8, 2018

Cancellation DateApr 9, 2020

Available for ApplicationsApr 9, 2020

KJ4DDU is a 2x3 format amateur radio callsign. It is currently registered to Henderson, Andrew W in Jacksonville, FL. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

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

CW Weight: 39 units(Moderate)

Voice Phonetics

Kilo Juliet Four Delta Delta Uniform

Readability: 6.5/10(Good readability)

This callsign is available now

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

License History

License ExpiredApr 9, 2020
System-Generated GrantApr 8, 2008
License IssuedApr 8, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KJ4DDT KJ4DDV →

FCC data as of Sep 12, 2026

Is KJ4DDU Available? FCC Vanity Status & Watchlist