K0SIS
Active1x3District 0
Competitive callsign — 1 application filed with the FCC.
License HolderGLASS, MARILYN E
License ClassGeneral
Min. Class RequiredGeneral
LocationFERNDALE, MI
Grant DateOct 4, 2023
Expiration DateOct 23, 2032
K0SIS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by GLASS, MARILYN E in FERNDALE, MI. 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 IRONS, SUSAN A on Oct 3, 2012. K0SIS has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----- ... .. ...
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Zero Sierra India Sierra
Readability: 6/10(Good readability)
License History
- Administrative Update AppliedMar 10, 2026
- License RenewedOct 4, 2023
- License ModifiedJan 13, 2015
- License IssuedOct 23, 2012
- Vanity Callsign GrantedOct 23, 2012
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- IRONS, SUSAN AFiled Oct 3, 2012Not awardedFCC ↗