Confidence: Medium · Source: FCC ULS · As of 2026-09-09
NN3SI
ActiveSmithsonian Amateur Radio Group
- Location
- Washington, DC
- Granted
- 2019-01-01
- Expires
- 2029-01-01
- Previous call
- KN4OAO
- FRN
- 0027718626
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Vanity availability
HeldCurrently held
NN3SI 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
- KN4OAOcancelledSmithsonian Institution Amateur Radio GroupVAgranted 2018-07-23cancelled 2019-01-01
License history
0 eventsNo recorded events.