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K0ARL

Active1x3District 0

Competitive callsign — 4 applications filed with the FCC.

License HolderSIEBRECHT, KARL D

License ClassTechnician

Min. Class RequiredGeneral

LocationBROOMFIELD, CO

Grant DateJan 7, 2023

Expiration DateJan 7, 2033

K0ARL is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by SIEBRECHT, KARL D in BROOMFIELD, CO. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Schneider, Karl A on Feb 2, 2017. K0ARL has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 37 units(Moderate)

Voice Phonetics

Kilo Zero Alpha Romeo Lima

Readability: 7/10(Good readability)

License History

License RenewedJan 7, 2023
License RenewedJun 19, 2012
Administrative Update AppliedApr 11, 2009
Vanity Callsign GrantedAug 31, 2002
License IssuedAug 31, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Schneider, Karl AFiled Feb 2, 2017
Not awardedFCC ↗
Zabinski, Karl AFiled Feb 6, 2012
Not awardedFCC ↗
SIEBRECHT, KARL DFiled Aug 12, 2002
Not awardedFCC ↗
SIEBRECHT, KARL DFiled Jul 1, 2002

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K0ARK K0ARM →

FCC data as of Sep 3, 2026

Dismissed

K0ARL FCC Vanity Status: 4 Competing Applications & History