K4OBB
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderLEIGH, HENRI
License ClassTechnician
Min. Class RequiredGeneral
LocationExton, PA
Grant DateJun 17, 2025
Expiration DateJun 17, 2035
K4OBB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by LEIGH, HENRI in Exton, PA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Schiefer, Robert on May 30, 2025. K4OBB has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- --- -... -...
CW Weight: 35 units(Moderate)
Voice Phonetics
Kilo Four Oscar Bravo Bravo
Readability: 8/10(High readability)
License History
- License ModifiedDec 31, 2025
- License IssuedJun 17, 2025
- Vanity Callsign GrantedJun 17, 2025
- License CanceledAug 12, 2005
- License IssuedMay 17, 2005
- Vanity Callsign GrantedMay 17, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.