K4SLC
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderCASTLEBERRY II, SAMUEL L
License ClassGeneral
Min. Class RequiredGeneral
LocationMcKinney, TX
Grant DateDec 9, 2025
Expiration DateFeb 23, 2036
K4SLC is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by CASTLEBERRY II, SAMUEL L in McKinney, TX. 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 CASTLEBERRY II, SAMUEL L on Feb 4, 2016. K4SLC has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... .-.. -.-.
CW Weight: 31 units(Moderate)
Voice Phonetics
Kilo Four Sierra Lima Charlie
Readability: 7.5/10(High readability)
License History
- License RenewedDec 9, 2025
- License IssuedFeb 23, 2016
- Vanity Callsign GrantedFeb 23, 2016
- License ExpiredFeb 27, 2013
Vanity Application Activity
Competing applications filed with the FCC for this callsign.