K3SJW
Expired1x3District 3
Competitive callsign — 2 applications filed with the FCC.
License HolderMazzoni, James N
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationSaint Paul, MN
Grant DateJul 30, 2014
Expiration DateOct 18, 2024
Available for ApplicationsOct 19, 2026
K3SJW is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Mazzoni, James N in Saint Paul, MN. 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 DABOUB, ANA M on Jan 25, 2000. K3SJW has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ...-- ... .--- .--
CW Weight: 36 units(Moderate)
Voice Phonetics
Kilo Three Sierra Juliet Whiskey
Readability: 7/10(Good readability)
Available Oct 19, 2026 (44 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedJul 30, 2014
- License ModifiedApr 3, 2008
- License ModifiedSep 14, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.