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/KC1WTO

← Back to results

KC1WTO

Active2x3District 1

Competitive callsign — 1 application filed with the FCC.

License HolderOstroff, William T

License ClassGeneral

Min. Class RequiredTechnician

LocationWest Haven, CT

Grant DateMay 15, 2018

Expiration DateMay 15, 2028

KC1WTO is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Ostroff, William T in West Haven, CT. 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 Ostroff, William T on Apr 27, 2018. KC1WTO has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 47 units(Heavy (slower to send))

Voice Phonetics

Kilo Charlie One Whiskey Tango Oscar

Readability: 7.5/10(High readability)

License History

License ModifiedJun 4, 2019
License IssuedMay 15, 2018
Vanity Callsign GrantedMay 15, 2018

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Ostroff, William TFiled Apr 27, 2018
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KC1WTN KC1WTP →

FCC data as of Sep 3, 2026

KC1WTO FCC Vanity Status: 1 Competing Application & History