How to Get a New SIM Card for a Used iPhone?
A Subscriber Identification Module, or SIM, is a removable smart card that "serves as a security mechanism in GSM cellular radio networks," says Webster's New World Dictionary. SIM cards store a us...
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Can the sim card from iPhone 4 be used with iPhone 5 4S?
Yes. SIM cards can work on ANY other GSM unlocked phone.
Can you put a used sim card in a new iPhone?
Yes provided it is a used micro sim card.
Can any sim card be used on a iPhone?
If the iPhone in question is jailbroken then yes, if no the iPhone is usually locked to a specific carrier
Can a tracfone sim card be used in the iPhone 4S?
At the Apple's technology lab and constuction area (true)