K4MAT
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderRANKIN, JAMES E
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationConcord, CA
Grant DateMar 24, 2026
Expiration DateJun 18, 2036
K4MAT is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by RANKIN, JAMES E in Concord, CA. 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 AGNESE Sr., MATTHEW D on Aug 19, 2004. K4MAT has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -- .- -
CW Weight: 27 units(Light (fast to send))
Voice Phonetics
Kilo Four Mike Alpha Tango
Readability: 8.5/10(High readability)
License History
- License RenewedMar 24, 2026
- License RenewedApr 7, 2016
- Administrative Update AppliedOct 8, 2009
- License RenewedMar 25, 2006
- License ModifiedJan 23, 2002
- License ModifiedMay 5, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.