I purchaesd a prepaid Verizon moto E phone, and want to put the sim card from my at&t g phone in it?

[AC Question]

I purchaesd a prepaid Verizon moto E phone, and want to put the sim card from my at&t g phone in it?

Is it possible to make this phone work on at&t? I do not have verizon service at home. Or, have I gotten myself a pricey paperweight? I thought the phone was unlocked and would work with other carriers?