Image:Area_code_NE.png, 370px, Nebraska's numbering plan areas and area codes (blue) 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 cod ...

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 Council Bluffs is a city in and the county seat ...

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 surrounds the numbering plan area 816, from which it was split on October 12, 1997. Histor ...

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 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 a telephone area code in the North American Numbering Plan for most of the northern part of the U.S. state Kansas. It was created in a split of the numbering plan area 913 on July 20, 1997. The numbering plan area stretches from ...

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) for the western and northern parts of the U.S. of State of Colorado. The numbering plan area includes Aspen, Breckenridge, Durango, Estes Park, Fort Collins, ...

poly 48 0 43 131 0 127 1 0

Area code 307 Image:Area_code_WY.png, Wyoming's numbering plan area and area code (blue) #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 308 poly 155 2 ...

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, Nebraska's numbering plan areas and area codes (blue) 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; clic ...

#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 an integrated 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, World Numbering Zone ...

(NANP) for the eastern part of the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

Nebraska Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...

. Area code 402 was one of the original North American area codes created in 1947, when it was assigned to the entire state. By splitting the numbering plan area (NPA) in 1954, it was reduced to roughly just the eastern half, including Lincoln, the state capital, and

Omaha Omaha ( ) is the List of cities in Nebraska, most populous city in the U.S. state of Nebraska. It is located in the Midwestern United States along the Missouri River, about north of the mouth of the Platte River. The nation's List of United S ...

, the largest city in the state. In 2011, the North American Numbering Plan Administrator (NANPA) authorized an

overlay complex In telecommunications, an area code overlay complex is a telephone numbering plan that assigns multiple area codes to the same geographic numbering plan area (NPA). Area code overlays are implemented in territories of the North American Numbe ...

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

History

In 1947, the

American Telephone and Telegraph Company AT&T Corporation, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to busi ...

(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 numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reach ...

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, Nebraska's numbering plan areas and area codes (blue) 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; clic ...

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

Hastings Hastings ( ) is a seaside town and Borough status in the United Kingdom, borough in East Sussex on the south coast of England, east of Lewes and south east of London. The town gives its name to the Battle of Hastings, which took place to th ...

and

Minden Minden () is a middle-sized town in the very north-east of North Rhine-Westphalia, Germany, the largest town in population between Bielefeld and Hanover. It is the capital of the district () of Minden-Lübbecke, situated in the cultural region ...

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,

and Lincoln, 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 Telephone number pooling, thousands-block number pooling, or just number pooling, is a method of allocating telephony numbering space of the North American Numbering Plan in the United States. The method allocates telephone numbers in blocks of 1,0 ...

was implemented to stave off exhaustion. In 2009, however,

NeuStar Neustar, Inc. is an American technology company that provides real-time information and analytics for risk, digital performance, defense, telecommunications, entertainment, and marketing industries, and also provides clearinghouse and directory se ...

projected that 402 would be exhausted in 2010. In March 2011, central office code relief was implemented by adding area code 531 in an overlay 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 of the North American Numbering Plan (NANP). It is the practice of including the area code of a telephone number when Dialling (telephony), dialing to initiate a t ...

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

References

External links

{{Area code box , State=NE , This=402/531 , N= 605 , S= 785 , E= 712, 660 , W= 308 , S1=IA , S2=KS , S3=MO , S4=SD Telecommunications-related introductions in 1947 Telecommunications-related introductions in 2011 402 402

History

See also

References

External links