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K4JXO

Available1x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderGrupp, Eardan L

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationFlorahome, FL

Grant DateMar 20, 2012

Expiration DateMar 20, 2022

Cancellation DateJul 15, 2017

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K4JXO

Available1x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderGrupp, Eardan L

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationFlorahome, FL

Grant DateMar 20, 2012

Expiration DateMar 20, 2022

Cancellation DateJul 15, 2017

Available for ApplicationsJul 16, 2019

K4JXO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Grupp, Eardan L in Florahome, FL. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Smith, Eric L on May 1, 2023. K4JXO has 7 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 41 units(Heavy (slower to send))

Voice Phonetics

Kilo Four Juliet X-ray Oscar

Readability: 7.5/10(High readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (1x3).

License History

License CanceledJul 15, 2017
Administrative Update AppliedJun 28, 2017
Administrative Update AppliedMar 10, 2015
Administrative Update AppliedJan 7, 2014
Administrative Update AppliedApr 11, 2013
License IssuedMar 20, 2012
Vanity Callsign GrantedMar 20, 2012

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Smith, Eric LFiled May 1, 2023
Not awardedFCC ↗
Grupp, Eardan LFiled Mar 2, 2012
Not awardedFCC ↗

Search external databases

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← K4JXN K4JXQ →

FCC data as of Sep 4, 2026

K4JXO FCC Vanity Status: 2 Competing Applications & History