K4GPU
Active1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderChmielewski, Marc S
License ClassGeneral
Min. Class RequiredGeneral
LocationRaleigh, NC
Grant DateAug 18, 2026
Expiration DateAug 18, 2036
K4GPU is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Chmielewski, Marc S in Raleigh, NC. 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 Chmielewski, Marc S on Jul 31, 2026. K4GPU has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- --. .--. ..-
CW Weight: 34 units(Moderate)
Voice Phonetics
Kilo Four Golf Papa Uniform
Readability: 8/10(High readability)
License History
- License IssuedAug 18, 2026
- Vanity Callsign GrantedAug 18, 2026
Vanity Application Activity
Competing applications filed with the FCC for this callsign.