K4IU
Active1x2District 4
No competing applications on record.
License HolderRegennitter, Frederick J
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationRochester, MN
Grant DateAug 31, 2016
Expiration DateNov 26, 2026
K4IU is a 1x2 format amateur radio callsign. It is currently registered to Regennitter, Frederick J in Rochester, MN. 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: 21 units(Light (fast to send))
Voice Phonetics
Kilo Four India Uniform
Readability: 7.5/10(High readability)
License History
- Administrative Update AppliedApr 22, 2026
- License RenewedAug 31, 2016
- License RenewedAug 30, 2006
- Administrative Update AppliedJul 9, 2001
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.