N4MRK
Active1x3District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderSLEMP, MARK A
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationAFTON, TN
Grant DateMar 21, 2020
Expiration DateMar 21, 2030
N4MRK is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by SLEMP, MARK A in AFTON, TN. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Cross, Ronald M on Aug 4, 2025. N4MRK has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ....- -- .-. -.-
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
November Four Mike Romeo Kilo
Readability: 7.5/10(High readability)
License History
- License ModifiedApr 2, 2021
- License ModifiedFeb 18, 2021
- License IssuedMar 21, 2020
- Vanity Callsign GrantedMar 21, 2020
- License ExpiredJun 9, 2017
- FRN Association Letter SentMay 17, 2005
- License RenewedMay 17, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.