K4EFZ
Expired1x3District 4
No competing applications on record.
License HolderEsbensen, Christopher J
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationAPOPKA, FL
Grant DateSep 10, 2014
Expiration DateNov 18, 2024
Available for ApplicationsNov 19, 2026
K4EFZ is a 1x3 format amateur radio callsign. It is currently registered to Esbensen, Christopher J in APOPKA, FL. 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: 29 units(Light (fast to send))
Voice Phonetics
Kilo Four Echo Foxtrot Zulu
Readability: 8/10(High readability)
Available Nov 19, 2026 (76 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedSep 10, 2014
- Tax ID (TIN) AddedAug 20, 2004
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.