N3OSB
Available1x3District 3
Competitive callsign — 1 application filed with the FCC.
License HolderSwanson, Calen P
License ClassTechnician
Min. Class RequiredGeneral
LocationSioux City, IA
Grant DateJan 17, 2013
Expiration DateApr 6, 2023
Cancellation DateApr 8, 2025
Available for ApplicationsApr 7, 2025
N3OSB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Swanson, Calen P in Sioux City, IA. 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 Osborne, Stephen on Sep 25, 2020. N3OSB has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ...-- --- ... -...
CW Weight: 31 units(Moderate)
Voice Phonetics
November Three Oscar Sierra Bravo
Readability: 7/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredApr 8, 2025
- License RenewedJan 17, 2013
- Tax ID (TIN) AddedMar 7, 2003
- License RenewedMar 7, 2003
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Osborne, StephenFiled Sep 25, 2020Not awardedFCC ↗