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W6STO

Active1x3District 6

Competitive callsign — 1 application filed with the FCC.

License HolderBranstetter, Matthew S

License ClassGeneral

Min. Class RequiredGeneral

LocationCloverdale, CA

Grant DateMar 22, 2019

Expiration DateMar 22, 2029

W6STO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Branstetter, Matthew S in Cloverdale, CA. 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 Branstetter, Matthew S on Mar 4, 2019. W6STO has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 29 units(Light (fast to send))

Voice Phonetics

Whiskey Six Sierra Tango Oscar

Readability: 7.5/10(High readability)

License History

Administrative Update AppliedNov 25, 2025
License IssuedMar 22, 2019
Vanity Callsign GrantedMar 22, 2019

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Branstetter, Matthew SFiled Mar 4, 2019
Not awardedFCC ↗

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FCC data as of Sep 3, 2026

W6STO FCC Vanity Status: 1 Competing Application & History