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K4RZZ

Cancelled1x3District 4

Competitive callsign — 6 applications filed with the FCC.

License HolderSTOCK JR, THOMAS B

License ClassGeneral

Min. Class RequiredGeneral

LocationSAINT AUGUSTINE, FL

Grant DateNov 8, 2024

Cancellation DateNov 26, 2024

Available for ApplicationsNov 27, 2026

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K4RZZ

Cancelled1x3District 4

Competitive callsign — 6 applications filed with the FCC.

License HolderSTOCK JR, THOMAS B

License ClassGeneral

Min. Class RequiredGeneral

LocationSAINT AUGUSTINE, FL

Grant DateNov 8, 2024

Cancellation DateNov 26, 2024

Available for ApplicationsNov 27, 2026

K4RZZ is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by STOCK JR, THOMAS B in SAINT AUGUSTINE, FL. 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 STOCK JR, THOMAS B on Oct 21, 2024. K4RZZ has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 35 units(Moderate)

Voice Phonetics

Kilo Four Romeo Zulu Zulu

Readability: 7.5/10(High readability)

Available Nov 27, 2026 (83 days remaining)

Requires General license or higher to apply for this callsign format (1x3).

License History

License CanceledNov 26, 2024
License IssuedNov 8, 2024
Vanity Callsign GrantedNov 8, 2024

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

STOCK JR, THOMAS BFiled Oct 21, 2024
Not awardedFCC ↗
BOLICK, ROBERT LFiled Feb 25, 2014
Not awardedFCC ↗
REMBISZ, MICHAEL JFiled Mar 19, 2012
Not awardedFCC ↗
BOSTOCK, ROGER WFiled Nov 23, 2009

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K4RZW K4SAA →

FCC data as of Sep 4, 2026

Not awarded

FCC ↗

FULCHER, MICHAEL CFiled Jul 14, 2000

Not awardedFCC ↗

TAVENDER, NORMAN DFiled Jul 14, 2000

Not awardedFCC ↗

K4RZZ FCC Vanity Status: 6 Competing Applications & History