If you need to find your iPhone serial number, International Mobile Equipment Identity (IMEI) number, identifier, or ICCID number this article shows you several different ways you can locate it.
Click one of the items below to see how to view this info:
In iTunes
When iPhone is connected
When iPhone is not connected
On iPhone
In the iPhone About screen
On the SIM tray of iPhone 3G or on the back of the original iPhone
On a Mac using Apple System Profiler
On your iPhone packaging