NO5DO
Active2x2District 5
Competitive callsign — 1 application filed with the FCC.
License HolderKowalewski Jr, Donald C
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationTampa, FL
Grant DateMar 4, 2026
Expiration DateMay 27, 2036
NO5DO is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Kowalewski Jr, Donald C in Tampa, FL. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Kowalewski Jr, Donald C on May 9, 2016. NO5DO has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. --- ..... -.. ---
CW Weight: 32 units(Moderate)
Voice Phonetics
November Oscar Five Delta Oscar
Readability: 7.5/10(High readability)
License History
- License RenewedMar 4, 2026
- Administrative Update AppliedApr 5, 2022
- License IssuedMay 27, 2016
- Vanity Callsign GrantedMay 27, 2016
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Kowalewski Jr, Donald CFiled May 9, 2016Not awardedFCC ↗