KR4MJJ
Active2x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderJolley, Matthew J
License ClassGeneral
Min. Class RequiredTechnician
LocationCullman, AL
Grant DateApr 5, 2025
Expiration DateApr 5, 2035
KR4MJJ is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Jolley, Matthew J in Cullman, AL. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Jolley, Matthew J on Mar 18, 2025. KR4MJJ has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .-. ....- -- .--- .---
CW Weight: 45 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Mike Juliet Juliet
Readability: 6.5/10(Good readability)
License History
- Administrative Update AppliedAug 21, 2026
- License ModifiedApr 14, 2025
- License IssuedApr 5, 2025
- Vanity Callsign GrantedApr 5, 2025
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Jolley, Matthew JFiled Mar 18, 2025Not awardedFCC ↗