Using two sims two carriers

Hello ComputerZeke,

We'd like to start by offering this article that explains what eSIM is and how it works: About eSIM on iPhone. The page gives this information: "You can install eight or more eSIMs on an iPhone and use two phone numbers at the same time."

Next, take a look at this page that details using dual SIM cards on your device: Using Dual SIM with an eSIM - Apple Support.

For further guidance on what your options will be internationally, we advise reaching out to your wireless carrier who will be able to give you details on what is allowed and available on your account.

We hope this helps. Let us know if we can assist with anything else at all. Take care.

You may also find this helpful→Use eSIM while traveling abroad with your iPhone - Apple Support