KB4EFU
Expired2x3District 4
No competing applications on record.
License HolderGUPTON, DAVID R
License ClassNovice
Min. Class RequiredTechnician
LocationPORTLAND, OR
Grant DateSep 3, 2014
Expiration DateAug 17, 2024
Available for ApplicationsAug 18, 2026
KB4EFU is a 2x3 format amateur radio callsign. It is currently registered to GUPTON, DAVID R in PORTLAND, OR. 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: 32 units(Moderate)
Voice Phonetics
Kilo Bravo Four Echo Foxtrot Uniform
Readability: 7/10(Good readability)
Available Aug 18, 2026 (40 days remaining)
Requires Technician license or higher to apply for this callsign format (2x3).
License History
- License RenewedSep 3, 2014
- FRN Association Letter SentAug 17, 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.