KR4O
Expired2x1District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderSORENSEN, ERIC J
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationPOCAHONTAS, IA
Grant DateOct 11, 2016
Expiration DateAug 22, 2026
Available for ApplicationsAug 23, 2028
KR4O is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by SORENSEN, ERIC J in POCAHONTAS, IA. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Ingrande, Nicholas on Oct 20, 2026. KR4O has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. ....- ---
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Romeo Four Oscar
Readability: 8/10(High readability)
Available Aug 23, 2028 (664 days remaining)
Requires Amateur Extra license or higher to apply for this callsign format (2x1).
License History
- License RenewedOct 11, 2016
- Tax ID (TIN) AddedJun 2, 2006
- License RenewedJun 2, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.