Switching to the Un-Carrier can be exciting, but you have to know how to get set up. Here's how to activate a T-Mobile SIM card.

If you're a new T-Mobile customer or you recently purchased a new phone, you may have a new SIM card you'll need to activate. Here's how to set it up.

If you're a new Metro by T-Mobile customer who bought a SIM card online or in a retail store, you'll need to activate it, and we're here to help.

Not too long ago, T-Mobile was offering free pre-paid SIM cards, plus free shipping. The deal is now back on, so if you were thinking of making a switch off of your current carrier, be sure to hop ...

T-Mobile appears all set to eliminate any remaining traces of Sprint in a few months. A leaked company document reveals that the carrier will stop supporting legacy Sprint SIM cards on May 1, 2023 ...

T-Mobile is paying legacy Sprint subscribers $10 per line to swap out their SIM cards for T-Mobile SIM cards.