KR4OLO
Active2x3District 4
No competing applications on record.
License HolderTrautwein, Robert P
License ClassTechnician
Min. Class RequiredTechnician
LocationCharlotte, NC
Grant DateAug 18, 2026
Expiration DateAug 18, 2036
KR4OLO is a 2x3 format amateur radio callsign. It is currently registered to Trautwein, Robert P in Charlotte, NC. 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: 43 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Oscar Lima Oscar
Readability: 7/10(Good readability)
License History
- System-Generated GrantAug 18, 2026
- License IssuedAug 18, 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.