Confidence: Medium · Source: FCC ULS · As of 2026-09-09
WP4DK
ActiveMontalvo-Rivera, Julio C
- Location
- Sabana Grande, PR
- Class
- Technician
- Granted
- 2018-04-24
- Expires
- 2028-04-24
- Previous call
- WP3KH
- FRN
- 0004584090
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Vanity availability
HeldCurrently held
WP4DK 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
- Montalvo-Rivera, Julio CPRgranted 2011-08-30cancelled 2018-04-24
License history
0 eventsNo recorded events.