A. As of my last update in September 2021, Xfinity had a data cap policy in some regions, limiting the amount of data you can use per month. However, they often provide a generous monthly data allowance before charging extra for overages.  Throttling, which reduces internet speeds during peak hours, was not a common practice for most Xfinity home internet plans at that time. Please check with Xfinity directly or consult the latest information to confirm the current policies.