Can a prepaid iphone be used for a non prepaid account by replacing the sim?

Can a prepaid iphone be used for a non prepaid account by replacing the sim?

Added (1). I should mention, both the prepaid phone and the existing sim from another phone are on AT&T network.

Added (2). What I'm really trying to do is upgrade from my existing iphone SE to an iphone 8 by buying a prepaid iphone 8 that is on sale for a great price.

No. First it has to be unlocked by the prepaid provider.

I don't see why not. There's no "prepaid iPhone" though. The designation as such depends on the SIM in the phone & its configuration.

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