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/K4JCX

← Back to results

K4JCX

Active1x3District 4

Competitive callsign — 4 applications filed with the FCC.

License HolderHERNDON, JAMES C

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationMIMS, FL

Grant DateJul 29, 2021

Expiration DateAug 13, 2031

K4JCX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by HERNDON, JAMES C in MIMS, 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 HERNDON, JAMES C on Jul 26, 2011. K4JCX has 9 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 40 units(Moderate)

Voice Phonetics

Kilo Four Juliet Charlie X-ray

Readability: 7.5/10(High readability)

License History

License RenewedJul 29, 2021
License ModifiedMar 20, 2013
License IssuedAug 13, 2011
Vanity Callsign GrantedAug 13, 2011
License CanceledJun 16, 2009
License ModifiedApr 16, 2009
Vanity Callsign GrantedApr 1, 2008
License IssuedApr 1, 2008
License ExpiredMar 16, 2000

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

HERNDON, JAMES CFiled Jul 26, 2011
Not awardedFCC ↗
CORBIN, JOHN DFiled Mar 12, 2008
Not awardedFCC ↗
CATES, JOE MFiled Jul 3, 2006
Not awardedFCC ↗
D'Aoust, John AFiled Jul 3, 2006

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K4JCW K4JCY →

FCC data as of Sep 3, 2026

Not awarded

K4JCX FCC Vanity Status: 4 Competing Applications & History