KR4IAO
Active2x3District 4
No competing applications on record.
License HolderCLAPP, MATTHEW C
License ClassTechnician
Min. Class RequiredTechnician
LocationLEXINGTON, SC
Grant DateDec 6, 2025
Expiration DateDec 6, 2035
KR4IAO is a 2x3 format amateur radio callsign. It is currently registered to CLAPP, MATTHEW C in LEXINGTON, 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: 34 units(Moderate)
Voice Phonetics
Kilo Romeo Four India Alpha Oscar
Readability: 6.5/10(Good readability)
License History
- System-Generated GrantDec 6, 2025
- License IssuedDec 6, 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.