N1SDX
Cancelled1x3District 1
Competitive callsign — 2 applications filed with the FCC.
License HolderPeterson, John S
License ClassGeneral
Min. Class RequiredGeneral
LocationKingston, RI
Grant DateFeb 24, 2026
Cancellation DateMar 24, 2026
Available for ApplicationsMar 25, 2028
N1SDX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Peterson, John S in Kingston, RI. 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 Peterson, John S on Feb 6, 2026. N1SDX has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. .---- ... -.. -..-
CW Weight: 33 units(Moderate)
Voice Phonetics
November One Sierra Delta X-ray
Readability: 7/10(Good readability)
Available Mar 25, 2028 (567 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledMar 24, 2026
- License IssuedFeb 24, 2026
- Vanity Callsign GrantedFeb 24, 2026
- License ExpiredJul 8, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.