Section R746-350-3 - Application and NoticeA. Application -- Unless subject to R746-350-4.E for exclusive facilities, an Exiting Provider shall file an application with the Commission and the notices identified hereafter not less than 50 days prior to the Intended Date of Discontinuance.B. Notices -- An Exiting Provider shall provide written notice to the following: 2. subscribed customers that will be affected by the discontinuance of service;3. telecommunications corporations providing the Exiting Provider with resold telecommunications services, essential facilities or services, or unbundled network elements (UNEs), if they are part of or used to provide Basic Telecommunications Service to the Exiting Provider's affected customers; and4. the national number administrator, when applicable, authorizing the release of all unassigned telephone numbers unless the Exiting Provider establishes a need to retain the telephone numbers.Utah Admin. Code R746-350-3