KM4YFF
Active2x3District 4
No competing applications on record.
License HolderCrook, Donald C
License ClassTechnician
Min. Class RequiredTechnician
LocationRenton, WA
Grant DateJul 10, 2026
Expiration DateOct 7, 2036
KM4YFF is a 2x3 format amateur radio callsign. It is currently registered to Crook, Donald C in Renton, WA. 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: 42 units(Heavy (slower to send))
Voice Phonetics
Kilo Mike Four Yankee Foxtrot Foxtrot
Readability: 8/10(High readability)
License History
- License RenewedJul 10, 2026
- System-Generated GrantOct 7, 2016
- License IssuedOct 7, 2016
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.