T-Mobile US is one the biggest supplier of remote voice and information interchanges services in the United States (US). The organization’s 61 million T-Mobile and MetroPCS contract and prepaid buyer clients utilize its systems locally and can interface in Europe because of the good system of Deutsche Telekom.
12920 SE 38th Street
Bellevue, WA 98006
Customer Service: (877) 453-1304
Toll Free: (800) 318-9270