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K9ZZU

Active1x3District 9

Competitive callsign — 3 applications filed with the FCC.

License HolderMATULEWICZ, LEONARD J

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationOSWEGO, IL

Grant DateSep 19, 2023

Expiration DateSep 19, 2033

K9ZZU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by MATULEWICZ, LEONARD J in OSWEGO, IL. 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 MATULEWICZ, LEONARD J on Aug 30, 2023. K9ZZU has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

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

Voice Phonetics

Kilo Nine Zulu Zulu Uniform

Readability: 7.5/10(High readability)

License History

License IssuedSep 19, 2023
Vanity Callsign GrantedSep 19, 2023

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

MATULEWICZ, LEONARD JFiled Aug 30, 2023
Not awardedFCC ↗
THOMPSON, DELLITT AFiled Aug 2, 2001
Not awardedFCC ↗
WESLEY SR, HOWARD LFiled Aug 2, 2001
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K9ZZT K9ZZZ →

FCC data as of Jul 29, 2026

K9ZZU FCC Vanity Status: 3 Competing Applications & History