Hi @Btoms09 the current iPhone promotion does require a new line of service with a ported number (from another carrier) to qualify. You can see all promotions for iPhones and other popular devices and what the qualifications are on Xfinity.com/mobile.
I hope this helps.
Thanks for the reply. Follow up question... I'm thinking of purchasing iPhone 11 from apple store, because they will give me credit for turning in old iPhone. They say the phone is unlocked SIM free and not attached to any carrier. I haven't purchased phone yet because I want to be sure I can bring it over, so I don't have an IMEI number. Without having the IMEI number, how can I know if phone can be used w/ Xfinity?
@Btoms09 Yes. The iPhone 11 should not be an issue with compatibility.