N0CSO
Cancelled1x3District 0
Competitive callsign — 1 application filed with the FCC.
License HolderRobertson, William O
License ClassTechnician
Min. Class RequiredGeneral
LocationHuntsville, AL
Grant DateDec 8, 2020
Cancellation DateSep 4, 2026
Available for ApplicationsSep 5, 2028
N0CSO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Robertson, William O in Huntsville, AL. 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 OLDFIELD, CLIVE S on Nov 18, 2020. N0CSO has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ----- -.-. ... ---
CW Weight: 39 units(Moderate)
Voice Phonetics
November Zero Charlie Sierra Oscar
Readability: 6.5/10(Good readability)
Available Sep 5, 2028 (677 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledSep 4, 2026
- Administrative Update AppliedAug 6, 2026
- License IssuedDec 8, 2020
- Vanity Callsign GrantedDec 8, 2020
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- OLDFIELD, CLIVE SFiled Nov 18, 2020Not awardedFCC ↗