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W1SIS

Active1x3District 1

Competitive callsign — 1 application filed with the FCC.

License HolderCohen, Samuel C

License ClassTechnician

Min. Class RequiredGeneral

LocationWashington, DC

Grant DateAug 10, 2019

Expiration DateAug 10, 2029

W1SIS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Cohen, Samuel C in Washington, DC. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Cohen, Samuel C on Jul 23, 2019. W1SIS has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 28 units(Light (fast to send))

Voice Phonetics

Whiskey One Sierra India Sierra

Readability: 6.5/10(Good readability)

License History

License IssuedAug 10, 2019
Vanity Callsign GrantedAug 10, 2019
License ExpiredDec 12, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Cohen, Samuel CFiled Jul 23, 2019
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 4, 2026

W1SIS FCC Vanity Status: 1 Competing Application & History