Can you use a different sim card in your iPhone 4s?

I have a iPhone 4s for Verizon. I'm going on vacation to St. Croix (Us Virgin Islands). They don't have Verizon down there. Can I buy like a prepaid AT&T or go phone sim card and put it in my iPhone and it'll work? If not is there another way?

Don't try that

No. The phone would have to be unlocked. Only the carrier can do it and I know for a fact Verizon will not do it.

Nope. The phone is locked to Verizon so a SIM wouldn't work.

Iphone sim cards are tricky. I don't think itll work

The phone is locked but Verizon will unlock it for use with non-US GSM carriers. The question is whether the USVI qualifies. You're going to have to ask them and see.

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