T-Mobile is a telecommunications company that provides mobile phone services [1] [2] [3] [4] [5] [6]. Emails were sent via BlackBerry from T-Mobile on various dates, including December 3, 2011 [3], June 18, 2011 [4], July 22, 2011 [5], and May 20, 2010 [6]. T-Mobile also responded to a subpoena for subscriber and tolls information on September 23, 2025 [2]. The company's services were used by individuals, including Jeffrey Epstein, who sent and received emails via BlackBerry from T-Mobile [3] [4] [5] [6]. T-Mobile provided call records and other information in response to a subpoena from the Delaware Violent Crime Safe Streets Task Force [2].