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KN4RLO

Active2x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderPrendergast, Brian M

License ClassTechnician

Min. Class RequiredTechnician

LocationJacksonville, FL

Grant DateJan 2, 2019

Expiration DateJan 2, 2029

KN4RLO is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Prendergast, Brian M in Jacksonville, 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 Valenzuela, Karlo A on May 15, 2019. KN4RLO has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 38 units(Moderate)

Voice Phonetics

Kilo November Four Romeo Lima Oscar

Readability: 6.5/10(Good readability)

License History

Administrative Update AppliedAug 1, 2025
System-Generated GrantJan 2, 2019
License IssuedJan 2, 2019

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Valenzuela, Karlo AFiled May 15, 2019
DismissedFCC ↗
VALENZUELA, KARLO AFiled May 6, 2019
Not awardedFCC ↗

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← KN4RLN KN4RLP →

FCC data as of Sep 12, 2026

KN4RLO FCC Vanity Status: 2 Competing Applications & History