N0SPF
Available1x3District 0
Competitive callsign — 2 applications filed with the FCC.
License HolderLuther, Mark A
License ClassTechnician
Min. Class RequiredGeneral
LocationHillsboro, OR
Grant DateMar 28, 2017
Expiration DateMar 28, 2027
Cancellation DateJun 24, 2022
Available for ApplicationsJun 25, 2024
N0SPF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Luther, Mark A in Hillsboro, OR. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Zhang, Yiming on Aug 27, 2025. N0SPF has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ----- ... .--. ..-.
CW Weight: 36 units(Moderate)
Voice Phonetics
November Zero Sierra Papa Foxtrot
Readability: 6.5/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledJun 24, 2022
- Administrative Update AppliedJul 4, 2019
- Administrative Update AppliedDec 1, 2017
- Vanity Callsign GrantedMar 28, 2017
- License IssuedMar 28, 2017
- License ExpiredMay 20, 2014
- License RenewedFeb 26, 2002
- License ModifiedMay 26, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.