What’s an area code overlay and does Hancock County have one?

To ensure a continuing supply of telephone numbers, sometimes an area code overlay is added to a geographic region. In 2016, the 463 area code was added to the area served by 317—but if you already has a telephone number with a 317 area code, nothing changes. If you’re getting a new phone number, however, you might receive one with a 463 area code. 

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