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KP4AZ

Active2x2District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderRIOS, SIGFREDO

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationGUAYNABO, PR

Grant DateFeb 24, 2017

Expiration DateFeb 24, 2027

KP4AZ is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by RIOS, SIGFREDO in GUAYNABO, PR. 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 RIOS, SIGFREDO on Feb 6, 2017. KP4AZ has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 34 units(Moderate)

Voice Phonetics

Kilo Papa Four Alpha Zulu

Readability: 8/10(High readability)

License History

License IssuedFeb 24, 2017
Vanity Callsign GrantedFeb 24, 2017
License ExpiredDec 30, 2016
License RenewedSep 30, 2004

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

RIOS, SIGFREDOFiled Feb 6, 2017
Not awardedFCC ↗
RODRIGUEZ HERNANDEZ, ISRAEL DFiled Apr 29, 2002
DismissedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

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FCC data as of Sep 3, 2026

KP4AZ FCC Vanity Status: 2 Competing Applications & History