Year introduced: 2017
Capacity: 64GB and 256GB
Colors: Gold, Silver, Space Gray
Model number on the back cover: A905

The iPhone 8 models are available in three colors -- gold, silver, space gray with glass surfaces on both the front and back. The case is made of an "aerospace-grade" aluminum alloy and reinforced with steel. It is splash, water, and dust resistant to the IP67 standard. The model A1905 will be sold to AT&T and T-Mobile in USA. The list of Apple order number for each carrier listed below:
On AT&T: MQ6X2LL/A in gold with 64 GB of storage. In gold, with 256 GB of storage, the order number is MQ7T2LL/A. In silver, the order numbers are MQ6W2LL/A with 64 GB and MQ7R2LL/A with 256 GB of storage. In Space Gray, the order numbers are MQ6V2LL/A with 64 GB and MQ7Q2LL/A with 256 GB of storage.
In gold, on T-Mobile, the order numbers are MQ712LL/A with 64 GB and MQ7W2LL/A with 256 GB of storage. In silver, the order numbers are MQ702LL/A with 64 GB and MQ7V2LL/A with 256 GB . In Space Gray, the order numbers are MQ6Y2LL/A with 64 GB of storage and MQ7U2LL/A with 256 GB.