; (2) define a rural area as underserved, with respect to a service described in subsection (b), if service that meets or exceeds the standard established under that subsection is not available in the area; and (3) provide that a rural area shall be considered underserved, with respect to a service described in subsection (b), if tests show that the service available in the area does not meet or exceed the applicable average determined under subsection (d)(1) with respect to that service. (d) Data from urban areas The Commission shall— (1) gather data on the average signal strength and average speed of commercial mobile service and commercial mobile data service, and on the average speed of broadband Internet access service, provided in the 20 most populous metropolitan statistical areas in the United States; and (2) specify in the standard established under subsection (b) that— (A) commercial mobile service or commercial mobile data service available in a rural area is reasonably comparable to that service provided in an urban area only if the average signal strength and average speed with respect to the service in the rural area meets or exceeds the average determined under paragraph (1) with respect to that service; and (B) broadband Internet access service available in a rural area is reasonably comparable to that service provided in an urban area only if the average speed with respect to the service in the rural area meets or exceeds the average determined under paragraph (1) with respect to that service. (e) Periodic updating of data The Commission shall periodically update the data gathered under subsection (d)(1).