Request a transfer PIN if you want to keep your old number when switching to T-Mobile.

Xfinity Mobile is one of the largest MVNOs. If you're a subscriber and want to switch to another carrier, here's how to find your transfer PIN.

How to transfer data It might seem like a daunting task at first, but there are programs like dr.fone’s Switch Tool that make it easy to move all of your data from your old phone to your new phone.

Motorola developed this application to make it easy for you to transfer text messages, call history, SIM contacts, pictures, video, and music from your old phone to your brand new Moto X.

Droid Transfer is a popular Android media transfer program for Windows, which allows you to backup your messages, photos, contacts, music and other files from your Android phone to your PC.