Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W1SBO
ActiveOsmon, Stephen B
- Location
- Chesterfield, MO
- Class
- Technician
- Granted
- 2020-01-29
- Expires
- 2030-03-13
- Previous call
- KD0KLK
- FRN
- 0019599927
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Vanity availability
HeldCurrently held
W1SBO is held by an active license; it isn't a vanity slot right now.
Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).
Callsign genealogy
Full chain →Previously held by current licensee
- Osmon, Stephen BMOgranted 2010-02-22cancelled 2010-03-13
License history
0 eventsNo recorded events.