Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K3MMB
ActiveBarrett, Michael M
- Location
- Frederick, MD
- Class
- General
- Granted
- 2023-04-04
- Expires
- 2033-05-28
- Previous call
- KB3JGH
- FRN
- 0006345508
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Vanity availability
HeldCurrently held
K3MMB 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
- Barrett, Michael MMDgranted 2003-03-11cancelled 2003-05-28
License history
0 eventsNo recorded events.