KO6ISK
Cancelled2x3District 6
No competing applications on record.
License HolderO'Brien, Matthew J
License ClassTechnician
Min. Class RequiredTechnician
LocationTucson, AZ
Grant DateApr 8, 2025
Cancellation DateApr 26, 2025
Available for ApplicationsApr 27, 2027
KO6ISK is a 2x3 format amateur radio callsign. It is currently registered to O'Brien, Matthew J in Tucson, AZ. 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 Oscar Six India Sierra Kilo
Readability: 6.5/10(Good readability)
Available Apr 27, 2027 (234 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License CanceledApr 26, 2025
- System-Generated GrantApr 8, 2025
- License IssuedApr 8, 2025
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.