KF0QFO
Cancelled2x3District 0
No competing applications on record.
License HolderBrenn, Rachel Y
License ClassAmateur Extra
Min. Class RequiredTechnician
LocationBoulder, CO
Grant DateMay 1, 2024
Cancellation DateJul 12, 2024
Available for ApplicationsJul 13, 2026
KF0QFO is a 2x3 format amateur radio callsign. It is currently registered to Brenn, Rachel Y in Boulder, CO. 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: 53 units(Very heavy)
Voice Phonetics
Kilo Foxtrot Zero Quebec Foxtrot Oscar
Readability: 7/10(Good readability)
Available Jul 13, 2026 (2 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledJul 12, 2024
- Administrative Update AppliedJun 1, 2024
- License ModifiedMay 28, 2024
- System-Generated GrantMay 1, 2024
- License IssuedMay 1, 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.