How to find Apple's mobile phone address book?

Apple's mobile phone address book is stored in the mobile phone, and the iphone does not provide the option of storing contacts in the sim card, so when saving contacts, it is saved to the mobile phone by default.

If the sim card has saved numbers before, be sure to confirm which ones are in the phone and which ones are in the card. You can unplug the sim card and leave the rest in your phone.

Extended data:

Import SIM address book into Apple mobile phone:

1. Open the "Settings" button on Apple's mobile phone, as shown in the figure below.

2. In this interface, find the button and click "Mail, Address Book, Calendar", as shown in the following figure.

3. Slide down, find and click the "Import SIM card address book" button, click Import SIM card address book, and then the system will remind you that you are importing SIM card address book.