Confidence: Medium · Source: FCC ULS · As of 2026-09-10
KO4SBL
ActiveLarson, Stephen B
- Location
- Raleigh, NC
- Class
- Technician
- Granted
- 2020-08-08
- Expires
- 2030-08-08
- Previous call
- KO4FJR
- FRN
- 0029562774
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Vanity availability
HeldCurrently held
KO4SBL 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
- Larson, Stephen BNCgranted 2020-07-20cancelled 2020-08-08
License history
0 eventsNo recorded events.