can a iphone from cricket be tranffered from cricket to at
I just want to know if an at&t SIM card can be used in a cricket iPhone 5s
If you bought the iPhone 5s from a Cricket store without a SIM card or a cellular service, you might be able to use the AT&T card with it. I would suggest that you contact AT&T to get a definitive answer on that.
Ref: Wireless carrier support and features for iPhone - Apple Support