Image:Area_code_NE.png, 370px, Interactive map of Nebraska's numbering plan areas in blue with border states poly 50 20 272 25 291 37 298 32 323 30 340 38 353 50 347 36 354 16 346 7 350 1 47 0

Area code 605 Image:Area_code_SD.png, The map above is clickable; click on an area code to go to the page for that code. South Dakota's area code in blue with border states shown in yellow, orange and green, 350px, thumb poly 93 2 86 105 1 98 1 1 Area code ...

poly 477 147 389 154 383 146 386 131 376 103 374 104 372 95 369 77 359 58 356 49 343 41 354 12 347 7 350 1 477 0

Area code 712 Area code 712 is the telephone area code in the North American Numbering Plan (NANP) for the most western part of Iowa, including the cities of Spencer, Le Mars, Sioux City, Council Bluffs, Red Oak, Sheldon, Storm Lake, Carroll, Sac City, and ...

poly 390 155 408 186 416 192 420 191 425 182 418 178 418 175 449 173 449 180 463 185 472 176 480 179 480 147

Area code 660 Area code 660 is the telephone area code in the North American Numbering Plan (NANP) for the northern and western part of the U.S. state of Missouri. It was created on October 12, 1997, in an area code split of the 816 numbering plan area (NPA) ...

poly 424 190 428 196 417 211 427 217 479 219 480 178 474 179 466 186 449 183 449 173 418 174

Area code 816 Area code 816 is a telephone area code in the North American Numbering Plan (NANP) for Kansas City, St. Joseph, and all or part of 15 surrounding counties in northwestern Missouri. The numbering plan area originally comprised most of the northern ...

poly 125 190 405 188 415 193 424 192 427 196 418 207 418 214 428 218 125 218

Area code 785 Area code 785 is the area code for telephone exchanges in most of northern Kansas. It was created in a split of the numbering plan area 913 on July 20, 1997, and stretches from the Colorado state line on the west to the Missouri state line on the ...

poly 125 137 123 217 0 219 2 129

Area code 970 Area code 970 is a telephone area code in the North American Numbering Plan (NANP) serving most of the western and northern parts of Colorado. The numbering plan area includes Aspen, Breckenridge, Durango, Estes Park, Fort Collins, Glenwood Spri ...

poly 48 0 43 131 0 127 1 0

Area code 307 Image:Area_code_WY.png, Map of Wyoming showing its area code in blue (with border states) #poly 83 35 344 34 353 243 75 246 Area Code 397 poly 347 139 425 139 420 0 343 0 Area code 605 poly 348 139 429 139 420 243 352 243 Area code 30 ...

poly 49 20 175 25 175 29 161 35 178 40 178 46 161 45 161 49 154 48 153 58 127 58 130 77 193 76 193 61 225 59 225 71 234 75 238 81 248 78 267 72 278 74 274 80 283 94 297 101 303 110 309 113 314 109 320 116 274 143 276 150 267 153 273 162 274 171 278 170 269 189 124 188 126 137 44 133

Area code 308 Image:Area_code_NE.png, 370px, Interactive map of Nebraska's numbering plan areas in blue with border states poly 50 20 272 25 291 37 298 32 323 30 340 38 353 50 347 36 354 16 346 7 350 1 47 0 Area code 605 poly 477 147 389 154 383 146 386 ...

#poly 176 26 164 35 179 41 178 44 161 44 161 49 153 48 153 57 129 60 129 78 193 77 194 59 228 59 224 70 234 72 235 81 247 80 266 73 279 74 276 82 283 94 296 101 308 114 316 110 321 117 302 123 273 145 274 153 266 153 274 164 274 174 275 171 268 191 411 188 387 151 383 146 386 134 379 106 373 102 368 77 355 52 340 39 324 31 299 32 292 36 269 26 Area code 402 desc top-right Area codes 402 and 531 are telephone

area code A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, rea ...

s in the

North American Numbering Plan The North American Numbering Plan (NANP) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the international callin ...

(NANP) for eastern

Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwe ...

. Area code 402 was one of the original area codes created in 1947, when it was assigned to the entire state. After splitting the numbering plan area (NPA) in 1954, when the numbering plan area (NPA) was reduced to roughly just the eastern half, the North American Numbering Plan Administrator authorized an

overlay plan Overlay may refer to: Computers *Overlay network, a computer network which is built on top of another network *Hardware overlay, one type of video overlay that uses memory dedicated to the application *Another term for exec, replacing one process ...

for which area code 531 was added to the same service area in 2011.

History

In 1947, the

American Telephone and Telegraph Company AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile tel ...

(AT&T) created the first nationwide

telephone numbering plan A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone number A telephone number is a sequence of digits assigned to a landline telephone subscriber station connected to a telephone line or ...

in the United States and Canada. The entire state of Nebraska was designated as one of eighty-six numbering plan areas, and received area code 402. In 1954, the numbering plan area was divided. Eastern Nebraska retained 402, and

area code 308 Image:Area_code_NE.png, 370px, Interactive map of Nebraska's numbering plan areas in blue with border states poly 50 20 272 25 291 37 298 32 323 30 340 38 353 50 347 36 354 16 346 7 350 1 47 0 Area code 605 poly 477 147 389 154 383 146 386 ...

was assigned to western Nebraska. The overall roughly diagonal dividing line runs from the southeast between

Hastings Hastings () is a large seaside town and borough in East Sussex on the south coast of England, east to the county town of Lewes and south east of London. The town gives its name to the Battle of Hastings, which took place to the north-west ...

and

Minden Minden () is a middle-sized town in the very north-east of North Rhine-Westphalia, Germany, the greatest town between Bielefeld and Hanover. It is the capital of the district (''Kreis'') of Minden-Lübbecke, which is part of the region of Detm ...

north into the northern part of the state and then west towards the eastern edge of the Sandhills in the northwest of the state. Nebraska's most-populous cities,

Omaha Omaha ( ) is the largest city in the U.S. state of Nebraska and the county seat of Douglas County. Omaha is in the Midwestern United States on the Missouri River, about north of the mouth of the Platte River. The nation's 39th-largest city ...

and

Lincoln Lincoln most commonly refers to: * Abraham Lincoln (1809–1865), the sixteenth president of the United States * Lincoln, England, cathedral city and county town of Lincolnshire, England * Lincoln, Nebraska, the capital of Nebraska, U.S. * Lincol ...

, are near each other in the eastern part of the state and retained the area code, while Grand Island, then the state's third-most-populous city, was placed in 308. Omaha and Lincoln are not only home to most of Nebraska's landlines, but also to most of its cell phones and pagers. As a result, the numbering pool for area code 402 was nearly exhausted by the end of the 1990s. It was originally projected to be exhausted in 2001, but

number pooling Number pooling is a method of reallocating telephony numbering space in the North American Numbering Plan, primarily in growth areas in the United States. Instead of allocating blocks of ten thousand numbers to each carrier in each community, a bl ...

was implemented to stave off exhaustion. In 2009, however, NeuStar projected that 402 would be exhausted in 2010. In March 2011, central office code relief was implemented by adding area code 531 in an

to the same service area of 402. Although the first central office prefix in 531 was not assigned until February 2013,

ten-digit dialing Ten-digit dialing is a telephone dialing procedure in the countries and territories that are members of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when dialing to initiate a telep ...

has been mandatory for all calls from the 402 territory since Spring 2011.

Service area

The major cities or towns in the numbering plan area are Beatrice,

Bellevue Bellevue means "beautiful view" in French. It may refer to: Placenames Australia * Bellevue, Western Australia * Bellevue Hill, New South Wales * Bellevue, Queensland * Bellevue, Glebe, an historic house in Sydney, New South Wales Canada ...

Columbus Columbus is a Latinized version of the Italian surname "''Colombo''". It most commonly refers to: * Christopher Columbus (1451-1506), the Italian explorer * Columbus, Ohio, capital of the U.S. state of Ohio Columbus may also refer to: Places ...

, Fremont,

La Vista La Vista may refer to: * La Vista, Nebraska, a city in Nebraska * La Vista (Spotsylvania County, Virginia), an historic house in Spotsylvania County, Virginia * La Vista Correctional Facility, prison in Pueblo County, Colorado * La Vista High Sc ...

Norfolk Norfolk () is a ceremonial and non-metropolitan county in East Anglia in England. It borders Lincolnshire to the north-west, Cambridgeshire to the west and south-west, and Suffolk to the south. Its northern and eastern boundaries are the No ...

, Papillion, Ralston, Valentine, and Wayne.

History

Service area

See also