Area code 701 explained

image:Area_code_ND.png|right|North Dakota numbering plan area and area code, with border states and provinces)poly 0 0 106 0 106 36 0 30 Area code 306poly 109 1 107 34 239 35 298 32 297 0 Area code 204poly 241 36 298 33 300 144 296 142 284 147 283 154 278 154 274 146 261 146 255 110 254 92 247 75 245 50 Area code 218poly 260 148 264 156 267 171 265 182 256 189 263 198 297 198 299 145 297 144 285 147 284 155 278 153 273 148 Area code 320poly 30 175 208 177 266 176 260 187 264 199 30 198 Area code 605poly 0 32 34 33 28 196 28 199 1 199 Area code 406desc top-rightArea code 701 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. State of North Dakota. It is one of the 86 original North American area codes created by AT&T in 1947, and continues to be the only area code in North Dakota, one of eleven states with only one area code.

Numbering plan area 701 is divided between the Bismarck and Fargo LATAs, and is one of only a few divided area codes. The Fargo LATA extends for some distance into northern Minnesota, as far east as Brainerd.

Numbering plan exhaust projections forecast that North Dakota will not need a new area code until 2029.[1] About 730 of the nearly 800 possible central office codes have been assigned.

Being the sole area code in North Dakota, seven-digit dialing is in effect for all calls within the state. The situation was threatened in 2020, when it was anticipated that the state had to transition to always dialing ten digits, because of the implementation of a short-code (988) for the National Suicide Prevention Lifeline, because that code was assigned as a central office prefix to an office (CLLI code BSMRNDJC) in Bismarck. However, the local telephone administration decided to discontinue this central office code, and return it to the NANP Administrator.[2] This action removed the need to implement ten-digit dialing in area code 701, until relief is necessary in the future.

Service area and central office prefixes

Premium calls (unassigned): 211, 311, 319, 333, 365, 406, 411, 446, 470, 479, 491, 495, 508, 536, 555, 558, 581, 585, 595, 603, 604, 605, 606, 608, 611, 613, 614, 615, 616, 617, 618, 619, 643, 700, 701, 703, 704, 706, 708, 711, 716, 735, 750, 790, 802, 803, 804, 806, 810, 811, 812, 813, 814, 816, 817, 819, 823, 831, 855, 902, 903, 904, 906, 907, 908, 909, 910, 911, 913, 914, 915, 916, 917, 918, 919, 921, 930, 931, 932, 940, 950, 958, 959, 976, 978, 986, 990, 991, 994 & 995.

See also

Notes and References

  1. Web site: October 2021 NPA Exhaust Analysis. December 10, 2021. October 2021. North American Numbering Plan Administrator.
  2. https://www.nationalnanpa.com/pdf/PL_556.pdf NANPA Planning Letter 556 (January 8, 2021)

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