Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W4OSO
Cancelled Sign in to watch
Get notified about status changes and vanity availability for this callsign.
Vanity availability
AvailableAvailable now
W4OSO cleared its 2-year hold on 2000-04-22. Eligible for vanity application.
Confidence: High
Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.
Callsign genealogy
Full chain →Prior holders later became
- WITTE, PAUL MSCgranted 2018-01-26
License history
0 eventsNo recorded events.