K4IOU
Expired1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderGRAHAM, WILLIAM H
License ClassGeneral
Min. Class RequiredGeneral
LocationCOLUMBIA, TN
Grant DateDec 2, 2014
Expiration DateFeb 11, 2025
Available for ApplicationsFeb 12, 2027
K4IOU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by GRAHAM, WILLIAM H in COLUMBIA, TN. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Pegues, Charles M on Mar 4, 2025. K4IOU has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .. --- ..-
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Four India Oscar Uniform
Readability: 7/10(Good readability)
Available Feb 12, 2027 (218 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedDec 2, 2014
- FRN Association Letter SentFeb 16, 2005
- License RenewedFeb 11, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.