Area Code 313

Local Presence for Detroit, Livonia, and Dearborn

You can increase your connection rate up to 30% by dialing from a local number.

Local Presence by Tenfold gives you one-click access from your existing phone system to a local number in the US area code 313 and more than 200 others.

Reach out to customers in Detroit, Livonia, and Dearborn.

Source: Wikipedia