On June 30, Contacts will be retired. You'll still be able to export your contacts up to July 31.
Contacts is a free service that let you back up a maximum of 5,000 contacts on a secure T-Mobile server. The number of customers using Contacts has decreased significantly over the past few years. Therefore, we decided to retire Contacts at the end of June, with export functionality up to July 31.
You can continue to store contacts on your phone, but we also suggest backing up contacts with an online service provider. Many popular email services offer contact storing services.