KR4IUO
Cancelled2x3District 4
No competing applications on record.
License HolderCross, Joseph
License ClassGeneral
Min. Class RequiredTechnician
LocationLivingston, TN
Grant DateJan 9, 2026
Cancellation DateFeb 14, 2026
Available for ApplicationsFeb 15, 2028
KR4IUO is a 2x3 format amateur radio callsign. It is currently registered to Cross, Joseph in Livingston, 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: 35 units(Moderate)
Voice Phonetics
Kilo Romeo Four India Uniform Oscar
Readability: 6/10(Good readability)
Available Feb 15, 2028 (528 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledFeb 14, 2026
- License ModifiedJan 20, 2026
- System-Generated GrantJan 9, 2026
- License IssuedJan 9, 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.