KR4MXJ
Active2x3District 4
No competing applications on record.
License HolderSpieker, Jonathan L
License ClassTechnician
Min. Class RequiredTechnician
LocationColorado Springs, CO
Grant DateJun 16, 2026
Expiration DateJun 16, 2036
KR4MXJ is a 2x3 format amateur radio callsign. It is currently registered to Spieker, Jonathan L in Colorado Springs, CO. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.
CW & Voice Analysis
Morse Code
-.- .-. ....- -- -..- .---
CW Weight: 43 units(Heavy (slower to send))
Voice Phonetics
Kilo Romeo Four Mike X-ray Juliet
Readability: 7/10(Good readability)
License History
- System-Generated GrantJun 16, 2026
- License IssuedJun 16, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications on record. Verify on the FCC ULS application search before filing.