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/KJ4ROB

← Back to results

KJ4ROB

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderKalil, Mary L

License ClassTechnician

Min. Class RequiredTechnician

LocationPORT SAINT LUCIE, FL

Grant DateDec 20, 2019

Expiration DateJan 12, 2030

KJ4ROB is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Kalil, Mary L in PORT SAINT LUCIE, FL. 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 Johnson, Robbie K on Dec 19, 2022. KJ4ROB has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 44 units(Heavy (slower to send))

Voice Phonetics

Kilo Juliet Four Romeo Oscar Bravo

Readability: 6.5/10(Good readability)

License History

License RenewedDec 20, 2019
System-Generated GrantJan 12, 2010
License IssuedJan 12, 2010

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Johnson, Robbie KFiled Dec 19, 2022
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KJ4ROA KJ4ROC →

FCC data as of Sep 11, 2026

KJ4ROB FCC Vanity Status: 1 Competing Application & History