K4MJR
Active1x3District 4
Competitive callsign — 8 applications filed with the FCC.
License HolderRELYEA, FREDERICK A
License ClassTechnician
Min. Class RequiredGeneral
LocationCLAY, NY
Grant DateDec 31, 2019
Expiration DateDec 31, 2029
K4MJR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by RELYEA, FREDERICK A in CLAY, NY. This callsign has attracted significant interest in the amateur radio community, with 8 vanity applications filed with the FCC. The most recent was submitted by Robertson, Mitchell J on Dec 12, 2019. K4MJR has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -- .--- .-.
CW Weight: 35 units(Moderate)
Voice Phonetics
Kilo Four Mike Juliet Romeo
Readability: 7.5/10(High readability)
License History
- License ModifiedAug 18, 2025
- License ModifiedJul 13, 2021
- License IssuedDec 31, 2019
- Vanity Callsign GrantedDec 31, 2019
- License ExpiredDec 28, 2016
- Vanity Callsign GrantedDec 24, 2004
- License IssuedDec 24, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.