Area code 307

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Area code 605 Area code 308 Area code 970 Area code 435 Area code 406 Area code 208Map of Wyoming showing its area code in blue (with border states)
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North American Area code 307 is the area code that serves the entire U.S. state of Wyoming. It is one of the original area codes created in 1947.

Because it is sparsely populated, Wyoming is one of only 12 states (as of 2012) to only have one area code. Under current projections, it will likely stay that way until beyond 2040.

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Wyoming area codes: 307
North: 406
West: 208, 406, 435 Area code 307 East: 605, 308
South: 435, 970
Colorado area codes: 303, 719, 720, 970
Utah area codes: 385, 435, 801
Idaho area codes: 208
Montana area codes: 406
South Dakota area codes: 605
Nebraska area codes: 308, 402

Coordinates: 43°00′N 107°30′W / 43.000°N 107.500°W / 43.000; -107.500