Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: HAZNNDXADS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
701-348 A Glen Ullin ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-363 A McClusky ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-422 A Selfridge ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-442 A Underwood ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-445 A St Anthony ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-447 A Mercer ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-448 A Turtle Lake ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-462 A Washburn ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-487 A Pick City ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-584 A Elgin ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-597 A Flasher ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-622 A Carson ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-654 A Underwood ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-745 A Stanton ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-748 A Hazen ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-794 A Center ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-827 A Fort Yates ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-843 A New Salem ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-854 A Fort Yates ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-873 A Beulah ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-878 A Hebron ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-884 A Goodrich ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-948 A Zap ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      
701-983 A Golden Valley ND 4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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