I found an iPhone 4s in the dumpster and was trying to see if it would accept my SIM card. Verizon isn't the carrier and I was wondering how much it would be to request it be unlocked by Verizon? It seems to work just the bottom screen is cracked by the Home Button and it works but only if you push hard.
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If Verizon isn't the carrier you should find out who is. Verizon phones are automatically unlocked, while phones from At&T need to be unlocked.
If it's from At&T you can try to unlock it here: