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K1LSB

Active1x3District 1

Competitive callsign — 6 applications filed with the FCC.

License HolderCayton, Mark K

License ClassGeneral

Min. Class RequiredGeneral

LocationArlington, TX

Grant DateMar 27, 2018

Expiration DateMar 27, 2028

K1LSB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Cayton, Mark K in Arlington, TX. 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 Cayton, Mark K on Mar 7, 2018. K1LSB has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 35 units(Moderate)

Voice Phonetics

Kilo One Lima Sierra Bravo

Readability: 7.5/10(High readability)

License History

Administrative Update AppliedJan 11, 2022
License IssuedMar 27, 2018
Vanity Callsign GrantedMar 27, 2018

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Cayton, Mark KFiled Mar 7, 2018
Not awardedFCC ↗
Sweeney, Earl MFiled Feb 28, 2006
Not awardedFCC ↗
Ovitt Jr, William HFiled Feb 1, 2001
Not awardedFCC ↗
WELLS, ROGER EFiled Feb 1, 2001

Search external databases

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FCC data as of Sep 3, 2026

Not awarded

BULLARD JR, JOHN WFiled Oct 20, 2000

Not awardedFCC ↗

STANTON JR, JOHN HFiled Oct 20, 2000

Not awardedFCC ↗

K1LSB FCC Vanity Status: 6 Competing Applications & History