Confidence: Medium · Source: FCC ULS · As of 2026-09-09
NF4O
ActiveMahan, John C
- Location
- Spanish Fort, AL
- Class
- Amateur Extra
- Granted
- 2020-03-31
- Expires
- 2030-03-31
- Previous call
- KJ4QEA
- FRN
- 0019185206
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Vanity availability
HeldCurrently held
NF4O 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
- Mahan, John CALgranted 2019-11-27cancelled 2020-03-31
License history
0 eventsNo recorded events.