Universal Licensing System (including Application Search, License Search, License Manager, Tower Construction Notification System, E-106 System, Antenna Structure Registration Online Filing, ASR Application Search, ASR Registration Search, Application GeoSearch, 800 MHz and Ownership Information Search) will be down for scheduled maintenance starting at 7:00 PM EDT on Friday, April 16, 2021 until 2:00 PM EDT Saturday, April 17, 2021.