W1SJM
Unknown1x3Zone 1
License HolderMattern, Stephen J
License ClassGeneral
Min. Class RequiredGeneral
Requires General license or higher to apply for this callsign format (1x3).
License History
- License RenewedSep 11, 2025
- License IssuedFeb 11, 2014
- Vanity Callsign GrantedFeb 11, 2014
- License ExpiredJun 3, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
No competing applications detected. Monitor the FCC ULS application search to verify before filing.