K4OFF
Expired1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderShropshire, Mary A
License ClassTechnician
Min. Class RequiredGeneral
LocationConcord, NC
Grant DateOct 25, 2014
Expiration DateDec 14, 2024
Available for ApplicationsDec 15, 2026
K4OFF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Shropshire, Mary A in Concord, NC. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Sadikoff, Charles B on Mar 8, 2021. K4OFF has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- --- ..-. ..-.
CW Weight: 35 units(Moderate)
Voice Phonetics
Kilo Four Oscar Foxtrot Foxtrot
Readability: 8/10(High readability)
Available Dec 15, 2026 (103 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedOct 25, 2014
- License IssuedDec 14, 2004
- Vanity Callsign GrantedDec 14, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.