Confidence: Medium · Source: FCC ULS · As of 2026-09-09
KM0OS
ActiveJantz, Clifford E
- Location
- Altoona, IA
- Class
- Amateur Extra
- Granted
- 2018-04-17
- Expires
- 2028-04-17
- Previous call
- KE0OMW
- FRN
- 0026818302
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Vanity availability
HeldCurrently held
KM0OS 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
- Jantz, Clifford EIAgranted 2017-09-22cancelled 2018-04-17
License history
0 eventsNo recorded events.