IPhone SE working with different SIM?

My sister received an iPhone SE in the mail by accident, but her neighbor already received a replacement for it. She is wondering if she could repurpose it to work for her. The phone has packaging saying that it must be activated by the AT&T Prepaid service, and on the bill the phone already has the old number next to it. Could she theoretically unpackage it, take the Verizon SIM out of her HTC Desire 320, and put it into the iPhone instead?

I'm going with a no. It sounds like it is locked to AT&T so no other carrier's SIMs would work.

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