Confidence: Medium · Source: FCC ULS · As of 2026-09-09
WP4OO
ActiveNieves Febus, Lillian
- Location
- Toa Baja, PR
- Class
- General
- Granted
- 2025-09-11
- Expires
- 2035-10-02
- Previous call
- WP4PIP
- FRN
- 0027338763
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Vanity availability
HeldCurrently held
WP4OO 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
- Nieves Febus, LillianPRgranted 2015-02-05cancelled 2015-10-02
License history
0 eventsNo recorded events.