K4BXX
Active1x3District 4
Competitive callsign — 8 applications filed with the FCC.
License HolderOLSON, JOHN M
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationGRANTS PASS, OR
Grant DateJun 4, 2025
Expiration DateAug 11, 2035
K4BXX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by OLSON, JOHN M in GRANTS PASS, OR. 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 BEST, MARK I on Apr 27, 2026. K4BXX has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -... -..- -..-
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Four Bravo X-ray X-ray
Readability: 8/10(High readability)
License History
- License RenewedJun 4, 2025
- Administrative Update AppliedMar 19, 2024
- Administrative Update AppliedFeb 6, 2018
- Administrative Update AppliedJan 9, 2018
- Vanity Callsign GrantedAug 11, 2015
- License IssuedAug 11, 2015
- License ExpiredMar 16, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.