KR4IUU
Active2x3District 4
No competing applications on record.
License HolderSutton, Heidi E
License ClassTechnician
Min. Class RequiredTechnician
LocationNiceville, FL
Grant DateJan 10, 2026
Expiration DateJan 10, 2036
KR4IUU is a 2x3 format amateur radio callsign. It is currently registered to Sutton, Heidi E in Niceville, FL. 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: 31 units(Moderate)
Voice Phonetics
Kilo Romeo Four India Uniform Uniform
Readability: 5.5/10(Moderate readability)
License History
- System-Generated GrantJan 10, 2026
- License IssuedJan 10, 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.