Area code 380 is found in the US state of Ohio. Area code 614 and 380 are the area codes in the North American Numbering Plan for Columbus, Ohio and most of its close suburbs. Area code 614 is one of the original area codes assigned for Ohio in 1947, while area code 380 is an overlay code covering the same territory. Area code 380 was first put in service February 27, 2016. Currently, the largest city it serves is Columbus, OH, and it overlaps coverage areas with area code 614. Phone numbers in the 380 area code can be found in 4 cities or locations.