Is the iPhone and ipad SIM card interchangeable?

I have an ipad 4 and I want an iPhone. Without adding a data plan to the iPhone is it possible for me to switch the SIM card to the iPhone and it allow me to use my cell phone?

No…

your carrier knows the difference between an Iphone IMEI and an ipad IMEI… It will never work…

people had this idea 3 years ago… Lmao… Didn't work

Of course not. Your carrier is way ahead of you. Do you really think that they're that stupid?