KU4O
Active2x1District 4
No competing applications on record.
License HolderROBILIO, MARSHALL J
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationMEMPHIS, TN
Grant DateApr 18, 2026
Expiration DateApr 18, 2036
KU4O is a 2x1 format amateur radio callsign. It is currently registered to ROBILIO, MARSHALL J in MEMPHIS, 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: 28 units(Light (fast to send))
Voice Phonetics
Kilo Uniform Four Oscar
Readability: 8/10(High readability)
License History
- License RenewedApr 18, 2026
- License RenewedSep 10, 2015
- License RenewedMar 22, 2005
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.