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North American telephone area codes 419 and 567 serve the northwest corner of the State of Ohio. Cities served by this area code include Lima (Bluffton), Toledo (Ottawa Hills, Waterville, Whitehouse, Perrysburg, Port Clinton, Sylvania, Bowling Green, Maumee, Holland, Northwood, Oregon, Rossford), Findlay, Fostoria, Bryan, Fremont, Defiance, Napoleon, Tiffin, Sandusky, Ashland, Upper Sandusky and Mansfield. It also serves the Lake Erie islands north of Port Clinton and west of Sandusky. Both area codes are in the Eastern Time Zone.