KC3ZUO
Cancelled2x3District 3
No competing applications on record.
License HolderCITRO, FRANCIS J
License ClassGeneral
Min. Class RequiredTechnician
LocationFrederick, MD
Grant DateMar 23, 2018
Cancellation DateOct 11, 2024
Available for ApplicationsOct 12, 2026
KC3ZUO is a 2x3 format amateur radio callsign. It is currently registered to CITRO, FRANCIS J in Frederick, MD. 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: 46 units(Heavy (slower to send))
Voice Phonetics
Kilo Charlie Three Zulu Uniform Oscar
Readability: 7/10(Good readability)
Available Oct 12, 2026 (73 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledOct 11, 2024
- License IssuedSep 21, 2024
- System-Generated GrantSep 21, 2024
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.