KR4DOI
Active2x3District 4
No competing applications on record.
License HolderSimmons, Matthew
License ClassTechnician
Min. Class RequiredTechnician
LocationNorris, SC
Grant DateApr 29, 2025
Expiration DateApr 29, 2035
KR4DOI is a 2x3 format amateur radio callsign. It is currently registered to Simmons, Matthew in Norris, SC. 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: 35 units(Moderate)
Voice Phonetics
Kilo Romeo Four Delta Oscar India
Readability: 6.5/10(Good readability)
License History
- System-Generated GrantApr 29, 2025
- License IssuedApr 29, 2025
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.