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AJ4HZ

Active2x2District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderGao, Zihan

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationKnoxville, TN

Grant DateJun 28, 2022

Expiration DateJun 28, 2032

AJ4HZ is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Gao, Zihan in Knoxville, TN. 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 Gao, Zihan on Jun 10, 2022. AJ4HZ has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Alpha Juliet Four Hotel Zulu

Readability: 7.5/10(High readability)

License History

License IssuedJun 28, 2022
Vanity Callsign GrantedJun 28, 2022
License CanceledJan 7, 2011
Administrative Update AppliedSep 22, 2010
License IssuedMay 13, 2008
System-Generated GrantMay 13, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Gao, ZihanFiled Jun 10, 2022
Not awardedFCC ↗
Du, HaozeFiled Apr 14, 2022
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

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FCC data as of Sep 4, 2026

AJ4HZ FCC Vanity Status: 2 Competing Applications & History