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/K3ESQ

← Back to results

K3ESQ

Active1x3District 3

Competitive callsign — 6 applications filed with the FCC.

License HolderDowner, Russell S

License ClassGeneral

Min. Class RequiredGeneral

LocationLa Jolla, CA

Grant DateSep 26, 2017

Expiration DateSep 26, 2027

K3ESQ is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Downer, Russell S in La Jolla, CA. This callsign has attracted significant interest in the amateur radio community, with 6 vanity applications filed with the FCC. The most recent was submitted by GAWRONSKI, JOSEPH C on May 14, 2020. K3ESQ has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 30 units(Light (fast to send))

Voice Phonetics

Kilo Three Echo Sierra Quebec

Readability: 7.5/10(High readability)

License History

Administrative Update AppliedFeb 14, 2018
License IssuedSep 26, 2017
Vanity Callsign GrantedSep 26, 2017

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

GAWRONSKI, JOSEPH CFiled May 14, 2020
Not awardedFCC ↗
GIORDANO, MICHAEL CFiled Sep 6, 2017
Not awardedFCC ↗
Schlossberg, Brett AFiled Dec 10, 2012
Not awardedFCC ↗
Klein, Jeffrey NFiled May 10, 2010

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K3ESP K3ESR →

FCC data as of Sep 3, 2026

Not awarded

Hodges, Kristopher AFiled Dec 20, 2006

Not awardedFCC ↗

KOURY ESQ, KENNETH PFiled Dec 20, 2006

Not awardedFCC ↗

K3ESQ FCC Vanity Status: 6 Competing Applications & History