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/KW4KS

← Back to results

KW4KS

Active2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderKim, Sang Seok

License ClassTechnician

Min. Class RequiredGeneral

LocationLos Angeles, CA

Grant DateMay 6, 2025

Expiration DateJun 19, 2035

KW4KS is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Kim, Sang Seok in Los Angeles, CA. 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 Shipman, Kenny B on Oct 1, 2002. KW4KS has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 31 units(Moderate)

Voice Phonetics

Kilo Whiskey Four Kilo Sierra

Readability: 7.5/10(High readability)

License History

License RenewedMay 6, 2025
System-Generated GrantJun 19, 2015
License IssuedJun 19, 2015

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Shipman, Kenny BFiled Oct 1, 2002
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KW4KR KW4KT →

FCC data as of Jul 29, 2026

KW4KS FCC Vanity Status: 1 Competing Application & History