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/KJ4OSE

← Back to results

KJ4OSE

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderKennedy Jr, William R

License ClassGeneral

Min. Class RequiredTechnician

LocationDeltona, FL

Grant DateMar 12, 2024

Expiration DateMar 12, 2034

KJ4OSE is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Kennedy Jr, William R in Deltona, 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 MORALES, JOSE E on Feb 23, 2024. KJ4OSE has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 37 units(Moderate)

Voice Phonetics

Kilo Juliet Four Oscar Sierra Echo

Readability: 6.5/10(Good readability)

License History

License IssuedMar 12, 2024
Vanity Callsign GrantedMar 12, 2024
License ExpiredSep 1, 2021
System-Generated GrantAug 31, 2009
License IssuedAug 31, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

MORALES, JOSE EFiled Feb 23, 2024
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KJ4OSD KJ4OSF →

FCC data as of Sep 11, 2026

KJ4OSE FCC Vanity Status: 1 Competing Application & History