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If you don't update the area codes saved on your phone, you won't be able to call these fixed numbers anymore due to wrong numbers. However, there's a way to easily replace area codes in bulk on your iPhone contacts list in the blink of an eye.
Bulk Area Code Replacement on iPhone Contacts is as Follows:
Step 1: Download and install Edit Prefix Number for iPhone, iPad: Get Edit Prefix Number for iOS.
Step 2: Launch the Edit Prefix Number app, the app will request access to your contacts, press OK.
Step 3: In the New Prefix field, enter the new area code (e.g., for Hanoi, it's +8424) and the Old Prefix is the old area code (e.g., for Hanoi, it's 04).
Step 4: Click on Proceed to begin the process, then click OK to confirm.
So we've guided you on how to batch change area codes in iPhone contacts. Additionally, for iPhone users, don't miss out on some great games like Asphalt 8 and Temple Run 2.
