K4IOS
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderShipley, John D
License ClassTechnician
Min. Class RequiredGeneral
LocationCastle Rock, CO
Grant DateApr 7, 2017
Expiration DateApr 7, 2027
K4IOS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Shipley, John D in Castle Rock, CO. 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 CHILDRESS, RONALD on Aug 20, 2024. K4IOS has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .. --- ...
CW Weight: 28 units(Light (fast to send))
Voice Phonetics
Kilo Four India Oscar Sierra
Readability: 7/10(Good readability)
License History
- Administrative Update AppliedSep 12, 2017
- License IssuedApr 7, 2017
- Vanity Callsign GrantedApr 7, 2017
Vanity Application Activity
Competing applications filed with the FCC for this callsign.