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Image:Area_code_NE.png|right|Map of Nebraska area codes 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 477 147 389 154 383 146 386 131 376 103 374 104 372 95 369 77 359 58 356 49 343 41 354 12 347 7 350 1 477 0 Area code 712 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 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 poly 125 137 123 217 0 219 2 129 Area code 970 poly 48 0 43 131 0 127 1 0 Area code 307 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 #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 code 402 is the telephone numbering plan code for eastern Nebraska in the North American Numbering Plan. It was one of the original area codes created in 1947, and served the entire state. In 1954, area code 402 was split. Eastern Nebraska retained 402, and area code 308 was assigned to western Nebraska. The overall roughly diagonal dividing line runs from the southeast between Hastings and Minden north into the northern part of the state and then west towards the eastern edge of the Sandhills in the northwest of the state. ==History== The state's two largest cities, Omaha and Lincoln, are closely located in eastern Nebraska. In comparable circumstances in Kansas, where the largest cities, Wichita, Topeka, and Kansas City are also in the eastern part of the state, a north-south split was implemented placing Wichita in one area code, and Topeka and Kansas City in another. However, in Nebraska an east-west split was implemented in which Omaha and Lincoln retained 402, while Grand Island, then the state's third-largest 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, area code 402 was nearly exhausted by the end of the 1990s. It was originally projected to be exhausted in 2001, but number pooling was implemented to stave off exhaustion. In 2009, however, NeuStar projected that 402 would be exhausted in 2010. In March 2011, area code 531 was implemented as an overlay to area code 402. Although the first central prefix in 531 was not assigned until February 2013, ten-digit dialing has been mandatory across the entire 402 territory since the spring of 2011.〔http://www.psc.state.ne.us/home/NPSC/Area_Code_Relief.html〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Area codes 402 and 531」の詳細全文を読む スポンサード リンク
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