My sister-in-law has the AT&T Wireless iPhone 7 32gb rose gold. It was purchased a month ago. I purchased a Verizon Wireless iPhone 7 32gb rose gold recently. It just occurred to me that both of the have identical part numbers. Both boxes show: Model A1660 Part No. MN8K2LL/A Is there only one iPhone 7 for both Verizon and AT&T?