Q: Sim Card? for iPhone 5?

you find it here

Take a look at this link, http://support.apple.com/kb/HT5163

I believe there is a CDMA iphone with one of the US carriers that does not hav a sim card

The SIM tray is on the right side of the phone. Stick a paper clip or SIM unlock tool into the pinhole to eject it. Take the SIM out of the old and put it into the new.

Only the CDMA iPhone 4 does not use a SIM. The CDMA 4S has a SIM slot, but I don't believe it's required for activation, only for international roaming where there are no CDMA networks. The 5 uses it for activation of the CDMA service and for accessing the LTE network. It's required on the CDMA 5.

Thanks I knew there was an iphone that didn't have a SIM.  Thanks for the additional informations