Here's a step-by-step guide on activating your T-Mobile SIM card and connecting to the T-Mobile network. A brief company ...

When it comes to finding a prepaid phone plan, traditional carriers like AT&T, Verizon and T-Mobile aren't your only options. Here are our picks for the best prepaid phone plans this holiday season.

Many of the basic, budget plans from the big three carriers have lower prioritization and less features than some prepaid alternatives.

You can activate your AT&T SIM in-store, online, or by contacting customer service. The process is similar for postpaid and AT&T prepaid customers.