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W4KDO

Active1x3District 4

Competitive callsign — 5 applications filed with the FCC.

License HolderTaylor III, Charles G

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationKnoxville, TN

Grant DateMay 14, 2025

Expiration DateAug 4, 2035

W4KDO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Taylor III, Charles G in Knoxville, TN. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Silver, Terry T on Mar 15, 2021. W4KDO has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 35 units(Moderate)

Voice Phonetics

Whiskey Four Kilo Delta Oscar

Readability: 8/10(High readability)

License History

License RenewedMay 14, 2025
Administrative Update AppliedMay 1, 2025
License ModifiedAug 14, 2015
License IssuedAug 4, 2015
Vanity Callsign GrantedAug 4, 2015

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Silver, Terry TFiled Mar 15, 2021
Not awardedFCC ↗
Taylor III, Charles GFiled Jul 15, 2015
Not awardedFCC ↗
DIEGO, KAREN LFiled Jul 5, 2002
Not awardedFCC ↗
EMBLETON, EDWIN AFiled May 29, 2001

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← W4KDN W4KDP →

FCC data as of Sep 3, 2026

Dismissed

LINGER, MICHAEL IFiled May 29, 2001

DismissedFCC ↗

W4KDO FCC Vanity Status: 5 Competing Applications & History