Area code 807 is a telephone area code in the North American Numbering Plan (NANP) for the Canadian province of Ontario. The numbering plan area (NPA), comprising only Northwestern Ontario, was created in early 1962 in an area code split of NPA 705. The main reason for the split was not central office prefix exhaustion, but routing efficiency for calls from Western Canada to northwestern Ontario. Major communities served by area code 807 include Thunder Bay, Kenora, Dryden, Fort Frances, Rainy River, Marathon, and Greenstone. The area is split between the Central and Eastern Time Zones.