KO4SIR
Available2x3District 4
No competing applications on record.
License HolderVillanueva-Rivera, Luis J
License ClassGeneral
Min. Class RequiredTechnician
LocationFront Royal, VA
Grant DateAug 2, 2021
Expiration DateAug 2, 2031
Cancellation DateAug 23, 2021
Available for ApplicationsAug 24, 2023
KO4SIR is a 2x3 format amateur radio callsign. It is currently registered to Villanueva-Rivera, Luis J in Front Royal, VA. 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 Oscar Four Sierra India Romeo
Readability: 6/10(Good readability)
This callsign is available now
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledAug 23, 2021
- Administrative Update AppliedAug 3, 2021
- System-Generated GrantAug 2, 2021
- License IssuedAug 2, 2021
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.