KB5XX
Available2x2District 5
Competitive callsign — 3 applications filed with the FCC.
License HolderGIBSON, THOMAS F
License ClassAdvanced
Min. Class RequiredGeneral
LocationRENTON, WA
Grant DateSep 2, 2004
Expiration DateSep 2, 2014
Cancellation DateSep 3, 2016
Available for ApplicationsSep 3, 2016
KB5XX is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by GIBSON, THOMAS F in RENTON, WA. 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 HALL, DAVID S on May 27, 2025. KB5XX has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
-.- -... ..... -..- -..-
CW Weight: 34 units(Moderate)
Voice Phonetics
Kilo Bravo Five X-ray X-ray
Readability: 8/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredSep 3, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.