CFCallsignFinder

Search Watchlist

Track FCC amateur radio vanity callsign availability. Data updated daily.

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

© 2026 CallsignFinder. All rights reserved.

FCC data sourced from FCC Universal Licensing System. Not affiliated with the FCC.

Watchlist Search Account

Home/Search/W6CST

← Back to results

W6CST

Active1x3District 6

Competitive callsign — 6 applications filed with the FCC.

License HolderTewari, Claudius S

License ClassTechnician

Min. Class RequiredGeneral

LocationSan Jose, CA

Grant DateFeb 17, 2023

Expiration DateFeb 17, 2033

W6CST is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Tewari, Claudius S in San Jose, 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 Tewari, Claudius S on Jan 30, 2023. W6CST has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

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

Voice Phonetics

Whiskey Six Charlie Sierra Tango

Readability: 7.5/10(High readability)

License History

License IssuedFeb 17, 2023
Vanity Callsign GrantedFeb 17, 2023

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Tewari, Claudius SFiled Jan 30, 2023
Not awardedFCC ↗
TAYLOR, CRAIG SFiled Apr 8, 2013
Not awardedFCC ↗
ARNDT, PAUL CFiled Jul 19, 2010
Not awardedFCC ↗
Tedder, Charles SFiled Nov 13, 2007

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← W6CSS W6CSW →

FCC data as of Jul 10, 2026

Not awarded

COAKES, LINDA SFiled Jul 28, 2000

Not awardedFCC ↗

Taylor, Christopher SFiled Jul 28, 2000

Not awardedFCC ↗

W6CST FCC Vanity Status: 6 Competing Applications & History