K4SOF
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderEICHOLD III, SAMUEL
License ClassGeneral
Min. Class RequiredGeneral
LocationBirmingham, AL
Grant DateMay 20, 2025
Expiration DateJan 6, 2035
K4SOF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by EICHOLD III, SAMUEL in Birmingham, AL. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by EICHOLD III, SAMUEL on Dec 19, 2014. K4SOF has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... --- ..-.
CW Weight: 32 units(Moderate)
Voice Phonetics
Kilo Four Sierra Oscar Foxtrot
Readability: 7.5/10(High readability)
License History
- License RenewedMay 20, 2025
- Administrative Update AppliedApr 15, 2023
- Administrative Update AppliedJan 9, 2018
- License IssuedJan 6, 2015
- Vanity Callsign GrantedJan 6, 2015
Vanity Application Activity
Competing applications filed with the FCC for this callsign.