How do I check if Xfinity fiber (gigabit pro) is available for my house or when it will be?

I remember reading a while back about Xfinity fiber where you get same high speeds for both download and upload up to 10 Gb similar to AT&T Fiber offering but then no news. So was wondering if that still happening and if so how do I find out if available for me?

If not available and expected waiting time before getting would be useful to know to.

Thanks for your help.