Do you travel internationally often with an iPhone? If so, you might want to be knowledgeable about the carriers your iPhone may be compatible with in various countries. This can allow you to use the iPhone in another region or country, usually by swapping out with a local SIM card to get local mobile service.

The model number of the iPhones being sold are often dependent on the region you’re residing in, and they pack different cellular radios to support different LTE bands. So, if you’re travelling abroad or moving to a different region, you need to make…