KR4IOT
Active2x3District 4
No competing applications on record.
License HolderBerrios, Steven M
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationFountain Inn, SC
Grant DateDec 28, 2025
Expiration DateDec 28, 2035
KR4IOT is a 2x3 format amateur radio callsign. It is currently registered to Berrios, Steven M in Fountain Inn, 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: 33 units(Moderate)
Voice Phonetics
Kilo Romeo Four India Oscar Tango
Readability: 6.5/10(Good readability)
License History
- License ModifiedMar 27, 2026
- License ModifiedJan 28, 2026
- System-Generated GrantDec 28, 2025
- License IssuedDec 28, 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.