K4DRO
Active1x3District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderCOLBY, BETTY J
License ClassTechnician
Min. Class RequiredGeneral
LocationYUMA, AZ
Grant DateJun 5, 2026
Expiration DateJun 5, 2036
K4DRO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by COLBY, BETTY J in YUMA, AZ. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Rodriguez, Daniel on May 18, 2026. K4DRO has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -.. .-. ---
CW Weight: 33 units(Moderate)
Voice Phonetics
Kilo Four Delta Romeo Oscar
Readability: 7.5/10(High readability)
License History
- License IssuedJun 5, 2026
- Vanity Callsign GrantedJun 5, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.