KR4OIZ
Active2x3District 4
No competing applications on record.
License HolderKing IV, Francis J
License ClassGeneral
Min. Class RequiredTechnician
LocationWarrenton, VA
Grant DateAug 13, 2026
Expiration DateAug 13, 2036
KR4OIZ is a 2x3 format amateur radio callsign. It is currently registered to King IV, Francis J in Warrenton, VA. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
-.- .-. ....- --- .. --..
CW Weight: 38 units(Moderate)
Voice Phonetics
Kilo Romeo Four Oscar India Zulu
Readability: 6.5/10(Good readability)
License History
- License ModifiedAug 21, 2026
- System-Generated GrantAug 13, 2026
- License IssuedAug 13, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.