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/K4JFB

← Back to results

K4JFB

Active1x3District 4

Competitive callsign — 3 applications filed with the FCC.

License HolderForder Jr, John R

License ClassTechnician

Min. Class RequiredGeneral

LocationGainesville, FL

Grant DateAug 19, 2017

Expiration DateAug 19, 2027

K4JFB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Forder Jr, John R in Gainesville, FL. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Baldwin, John F on Jul 20, 2021. K4JFB has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 36 units(Moderate)

Voice Phonetics

Kilo Four Juliet Foxtrot Bravo

Readability: 7.5/10(High readability)

License History

License IssuedAug 19, 2017
Vanity Callsign GrantedAug 19, 2017
License ExpiredMay 19, 2017
License RenewedMar 12, 2005
Administrative Update AppliedSep 21, 2004
FRN Association Letter SentSep 21, 2004

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Baldwin, John FFiled Jul 20, 2021
DismissedFCC ↗
Bristow, Jeff AFiled Aug 1, 2017
Not awardedFCC ↗
Bennett, Jason FFiled May 25, 2016
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K4JFA K4JFC →

FCC data as of Sep 4, 2026

K4JFB FCC Vanity Status: 3 Competing Applications & History