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KN4AA

Available2x2District 4

Competitive callsign — 6 applications filed with the FCC.

License HolderCLARK, RYAN J

License ClassTechnician

Min. Class RequiredGeneral

LocationTehachapi, CA

Grant DateFeb 23, 2011

Expiration DateFeb 23, 2021

Cancellation DateFeb 24, 2023

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KN4AA

Available2x2District 4

Competitive callsign — 6 applications filed with the FCC.

License HolderCLARK, RYAN J

License ClassTechnician

Min. Class RequiredGeneral

LocationTehachapi, CA

Grant DateFeb 23, 2011

Expiration DateFeb 23, 2021

Cancellation DateFeb 24, 2023

Available for ApplicationsFeb 24, 2023

KN4AA is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by CLARK, RYAN J in Tehachapi, CA. 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 APONTE RIVERA, FERDINAND G on Mar 19, 2018. KN4AA has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 26 units(Light (fast to send))

Voice Phonetics

Kilo November Four Alpha Alpha

Readability: 7.5/10(High readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (2x2).

License History

License ExpiredFeb 24, 2023
Administrative Update AppliedJun 11, 2011
License IssuedFeb 23, 2011
Vanity Callsign GrantedFeb 23, 2011
License ExpiredMar 7, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

APONTE RIVERA, FERDINAND GFiled Mar 19, 2018
DismissedFCC ↗
NEWBERRY, KEVIN RFiled Feb 2, 2011
Not awardedFCC ↗
Weekley, William LFiled Aug 18, 2008
Not awardedFCC ↗
Blue & Gray Contest ClubFiled Feb 8, 2002

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KN3WS KN4AB →

FCC data as of Sep 3, 2026

Not awardedFCC ↗

DYER, FRANKLIN WFiled Mar 16, 2001

Not awardedFCC ↗

QUALITY RADIO OPERATORSFiled Mar 16, 2001

Not awardedFCC ↗

KN4AA FCC Vanity Status: 6 Competing Applications & History