Confidence: Medium · Source: FCC ULS · As of 2026-09-09
KU4OW
ActiveLEON, CARLOS
- Location
- CHICAGO, IL
- Class
- Advanced
- Granted
- 2025-04-23
- Expires
- 2035-05-29
- Previous call
- KB9KRY
- FRN
- 0006371017
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Vanity availability
HeldCurrently held
KU4OW 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
- LEON, CARLOScancelled 1998-02-25
License history
0 eventsNo recorded events.