Wyoming's numbering plan area and area code (blue)
Area code 307 is the telephone area code in the North American Numbering Plan for the entire U.S. state of Wyoming. It is one of the 86 original North American area codes created by the American Telephone and Telegraph Company (AT&T) in 1947.
Because it is sparsely populated, Wyoming is one of only eleven states (as of April 8, 2020) with only one area code.
Areacodes 208 and 986 are telephone areacodes in the North American Numbering Plan for all of Idaho. Areacode 208 is one of the 86 original area codes...
Areacode 970 is a telephone areacode in the North American Numbering Plan (NANP) for most of the western and northern parts of the U.S. state of Colorado...
Areacode 435 is a telephone areacode in the North American Numbering Plan (NANP) for most of the U.S. state of Utah. Areacode 435 was created in 1997...
Areacode 605 is the telephone areacode in the North American Numbering Plan for the entire U.S. state of South Dakota. The numbering plan area was designated...
Rassa Harlem Heights List of Florida areacodes List of North American Numbering Plan areacodes "Planning Letter PL-307: 941 NPA Split, Creating 239 NPA...
geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan areacodes (NPA codes, or areacodes), consisting of three digits...
Areacode 308 is the telephone areacode in the North American Numbering Plan for western Nebraska. It was created on July 1, 1954, by splitting the numbering...
Areacodes 617 and 857 are telephone areacodes in the North American Numbering Plan (NANP) for the U.S. state of Massachusetts, serving the city of Boston...
Areacodes 541 and 458 are telephone areacodes in the North American Numbering Plan (NANP) for most of the U.S. state of Oregon, excluding only the northwestern...
Areacode 406 is the telephone areacode in the North American Numbering Plan for the entire U.S. state of Montana. It has been Montana's only area code...
Areacode 207 is the sole telephone areacode in the North American Numbering Plan (NANP) for the U.S. state of Maine. Areacode 207 was created as one...
Areacodes 304 and 681 are telephone areacodes in the North American Numbering Plan (NANP) for the entirety of the U.S. state of West Virginia. The numbering...
Areacode 302 is a telephone areacode in the North American Numbering Plan (NANP) for the U.S. state of Delaware. It is Delaware's only areacode, and...
calling areas. When dialling, if you wish to call a person in another local calling area, you must dial the trunk prefix followed by the areacode. Below...
Areacode 603 is the sole areacode for the U.S. state of New Hampshire in the North American Numbering Plan (NANP). It was created as one of the original...
Areacode 604 is a telephone areacode in the North American Numbering Plan for southwestern British Columbia, Canada. The numbering plan area comprises...
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