Do FaceTime calls show up on AT&T bill?

I want to FaceTime with my boyfriend from my iPhone 4S to his iPod. Will it show up on the bill or could you view that the call was made online? Basically will any information about the call be able to be accessed anywhere other than my phone?

They won't show as FaceTime calls, but if you made the FaceTime calls using your AT&T data plan, they will count against your data plan and will use data from the plan. If they are made using wi-fi only, they won't have an impact at all on the AT&T bill unless a SMS is sent to start each call (depends on the circumstances of the call).

FaceTime calls use about 3 MB per minute of data.