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/WH6CZ

← Back to results

WH6CZ

Active2x2District 6

Competitive callsign — 1 application filed with the FCC.

License HolderSumitani, Michael S

License ClassTechnician

Min. Class RequiredGeneral

LocationHilo, HI

Grant DateDec 3, 2016

Expiration DateDec 3, 2026

WH6CZ is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Sumitani, Michael S in Hilo, HI. 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 Sumitani, Michael S on Nov 15, 2016. WH6CZ has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 34 units(Moderate)

Voice Phonetics

Whiskey Hotel Six Charlie Zulu

Readability: 8/10(High readability)

License History

License IssuedDec 3, 2016
Vanity Callsign GrantedDec 3, 2016
License ExpiredNov 5, 2013
Administrative Update AppliedMay 12, 2011
Tax ID (TIN) AddedJul 25, 2001
License RenewedJul 25, 2001

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Sumitani, Michael SFiled Nov 15, 2016
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← WH6CY WH6DA →

FCC data as of Sep 3, 2026

WH6CZ FCC Vanity Status: 1 Competing Application & History