KI4RFO
Active2x3District 4
No competing applications on record.
License HolderJUNG, CHUL HWA
License ClassGeneral
Min. Class RequiredTechnician
LocationOAK RIDGE, TN
Grant DateJul 25, 2026
Expiration DateSep 13, 2036
KI4RFO is a 2x3 format amateur radio callsign. It is currently registered to JUNG, CHUL HWA in OAK RIDGE, TN. 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: 36 units(Moderate)
Voice Phonetics
Kilo India Four Romeo Foxtrot Oscar
Readability: 6.5/10(Good readability)
License History
- Administrative Update AppliedJul 27, 2026
- License RenewedJul 25, 2026
- License RenewedJul 8, 2016
- License ModifiedOct 17, 2014
- License IssuedSep 13, 2006
- System-Generated GrantSep 13, 2006
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.