KJ4RFJ
Active2x3District 4
No competing applications on record.
License HolderLangford, John F
License ClassTechnician
Min. Class RequiredTechnician
LocationVienna, VA
Grant DateDec 31, 2019
Expiration DateDec 31, 2029
KJ4RFJ is a 2x3 format amateur radio callsign. It is currently registered to Langford, John F in Vienna, VA. 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: 45 units(Heavy (slower to send))
Voice Phonetics
Kilo Juliet Four Romeo Foxtrot Juliet
Readability: 6/10(Good readability)
License History
- Administrative Update AppliedSep 1, 2026
- License RenewedDec 31, 2019
- System-Generated GrantDec 15, 2009
- License IssuedDec 15, 2009
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.