How to add Country or Area Code to a Phone Number List in Excel

Lists of phone numbers are a very common case with Microsoft Excel editors. In the case of landline and foreign phone numbers, adding the country code is important or the caller would never be able to dial the number right.

In this tutorial, we will show you how to add Country or Area Code to a Phone Number List in Excel. To add country/area code to a phone number list in Excel, you could use the simple prefix formula, however, this is valid when the country/area code is the same for all phone numbers across the list.

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How do you add two different area code numbers?