K4REF
Active1x3District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderFrost, Rick E
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationKnoxville, TN
Grant DateJul 23, 2019
Expiration DateJul 31, 2029
K4REF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Frost, Rick E in Knoxville, TN. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Frost, Rick E on Jul 13, 2009. K4REF has 5 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- .-. . ..-.
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
Kilo Four Romeo Echo Foxtrot
Readability: 7.5/10(High readability)
License History
- License RenewedJul 23, 2019
- License ModifiedSep 21, 2009
- License ModifiedAug 17, 2009
- License IssuedJul 31, 2009
- Vanity Callsign GrantedJul 31, 2009
Vanity Application Activity
Competing applications filed with the FCC for this callsign.