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/KC4SG

← Back to results

KC4SG

Active2x2District 4

Competitive callsign — 4 applications filed with the FCC.

License HolderGALPER, JEFFREY S

License ClassAdvanced

Min. Class RequiredGeneral

LocationBoca Raton, FL

Grant DateJun 5, 2018

Expiration DateJun 5, 2028

KC4SG is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by GALPER, JEFFREY S in Boca Raton, FL. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by GALPER, JEFFREY S on May 16, 2018. KC4SG has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 32 units(Moderate)

Voice Phonetics

Kilo Charlie Four Sierra Golf

Readability: 8/10(High readability)

License History

License IssuedJun 5, 2018
Vanity Callsign GrantedJun 5, 2018
License CanceledAug 17, 2012
License IssuedJan 17, 2003
Vanity Callsign GrantedJan 17, 2003

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

GALPER, JEFFREY SFiled May 16, 2018
Not awardedFCC ↗
GRIEBNO, CARL SFiled Dec 30, 2002
Not awardedFCC ↗
ALLEN, RICHARD DFiled Nov 13, 2000
Not awardedFCC ↗
Garber, Stanley RFiled Nov 13, 2000

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KC4SF KC4SH →

FCC data as of Sep 15, 2026

Not awarded

KC4SG FCC Vanity Status: 4 Competing Applications & History