K4TOS
Available1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderHarper, Glenn H
License ClassGeneral
Min. Class RequiredGeneral
LocationDuluth, GA
Grant DateJul 8, 2014
Expiration DateJul 8, 2024
Cancellation DateJul 9, 2026
Available for ApplicationsJul 9, 2026
K4TOS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Harper, Glenn H in Duluth, GA. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Harper, Glenn H on Jun 18, 2014. K4TOS has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- - --- ...
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Tango Oscar Sierra
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredJul 9, 2026
- License IssuedJul 8, 2014
- Vanity Callsign GrantedJul 8, 2014
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Harper, Glenn HFiled Jun 18, 2014Not awardedFCC ↗