KR4NWN
Active2x3District 4
No competing applications on record.
License HolderCepeda Rubio, Mario Francisco Jesu
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationKnoxville, TN
Grant DateJul 25, 2026
Expiration DateJul 25, 2036
KR4NWN is a 2x3 format amateur radio callsign. It is currently registered to Cepeda Rubio, Mario Francisco Jesu in Knoxville, 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: 34 units(Moderate)
Voice Phonetics
Kilo Romeo Four November Whiskey November
Readability: 6/10(Good readability)
License History
- License ModifiedAug 31, 2026
- License ModifiedAug 10, 2026
- System-Generated GrantJul 25, 2026
- License IssuedJul 25, 2026
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.