KR4IO
Active2x2District 4
No competing applications on record.
License HolderNIETO, JERRY A
License ClassTechnician
Min. Class RequiredGeneral
LocationSUNNYVALE, CA
Grant DateMay 28, 2025
Expiration DateJun 3, 2035
KR4IO is a 2x2 format amateur radio callsign. It is currently registered to NIETO, JERRY A in SUNNYVALE, CA. 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: 30 units(Light (fast to send))
Voice Phonetics
Kilo Romeo Four India Oscar
Readability: 7/10(Good readability)
License History
- License RenewedMay 28, 2025
- Administrative Update AppliedJan 5, 2021
- License ModifiedJan 4, 2021
- License RenewedJun 3, 2015
- License RenewedAug 27, 2003
- Administrative Update AppliedAug 28, 2002
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.