Views: 9,253 xfinitymobile.com Activate : xfinity.com/selfinstall or xfinity.com/authorize There are a few ways to activate your Xfinity Mobile service: Through the Xfinity app: Open the Xfinity app on your device. You may receive a push … Continue reading xfinitymobile.com Activate : xfinity.com/selfinstall or xfinity.com/authorize